freertos: update freertos folder structure to match upstream

The following changes have been made:
1. All FreeRTOS kernel source files are now placed in the
   freertos/FreeRTOS-Kernel folder to match with the upstream folder structure.
2. All kernel include files are now placed in freertos/FreeRTOS-Kernel/include.
3. All port files are now placed in freertos/FreeRTOS-Kernel/portable.
4. All additions/customizations are placed in freertos/esp_additions.
5. All other miscellaneous files (README, License files etc.) are moved to
   freertos/FreeRTOS-Kernel folder to match with the upstream.
6. Updated esp-cryptoauthlib to latest commit to resolve FreeRTOS
   include dependencies.

Signed-off-by: Sudeep Mohanty <sudeep.mohanty@espressif.com>

components/freertos/FreeRTOS-Kernel/portable/linux/include/freertos/FreeRTOSConfig_arch.h

@@ -0,0 +1,75 @@
+/*
+    FreeRTOS V10 - Copyright (C) 2021 Real Time Engineers Ltd.
+    All rights reserved
+
+    VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
+
+    This file is part of the FreeRTOS distribution.
+
+    FreeRTOS is free software; you can redistribute it and/or modify it under
+    the terms of the GNU General Public License (version 2) as published by the
+    Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.
+
+	***************************************************************************
+    >>!   NOTE: The modification to the GPL is included to allow you to     !<<
+    >>!   distribute a combined work that includes FreeRTOS without being   !<<
+    >>!   obliged to provide the source code for proprietary components     !<<
+    >>!   outside of the FreeRTOS kernel.                                   !<<
+	***************************************************************************
+
+    FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
+    WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+    FOR A PARTICULAR PURPOSE.  Full license text is available on the following
+    link: http://www.freertos.org/a00114.html
+
+    ***************************************************************************
+     *                                                                       *
+     *    FreeRTOS provides completely free yet professionally developed,    *
+     *    robust, strictly quality controlled, supported, and cross          *
+     *    platform software that is more than just the market leader, it     *
+     *    is the industry's de facto standard.                               *
+     *                                                                       *
+     *    Help yourself get started quickly while simultaneously helping     *
+     *    to support the FreeRTOS project by purchasing a FreeRTOS           *
+     *    tutorial book, reference manual, or both:                          *
+     *    http://www.FreeRTOS.org/Documentation                              *
+     *                                                                       *
+    ***************************************************************************
+
+    http://www.FreeRTOS.org/FAQHelp.html - Having a problem?  Start by reading
+	the FAQ page "My application does not run, what could be wrong?".  Have you
+	defined configASSERT()?
+
+	http://www.FreeRTOS.org/support - In return for receiving this top quality
+	embedded software for free we request you assist our global community by
+	participating in the support forum.
+
+	http://www.FreeRTOS.org/training - Investing in training allows your team to
+	be as productive as possible as early as possible.  Now you can receive
+	FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers
+	Ltd, and the world's leading authority on the world's leading RTOS.
+
+    http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
+    including FreeRTOS+Trace - an indispensable productivity tool, a DOS
+    compatible FAT file system, and our tiny thread aware UDP/IP stack.
+
+    http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.
+    Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.
+
+    http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High
+    Integrity Systems ltd. to sell under the OpenRTOS brand.  Low cost OpenRTOS
+    licenses offer ticketed support, indemnification and commercial middleware.
+
+    http://www.SafeRTOS.com - High Integrity Systems also provide a safety
+    engineered and independently SIL3 certified version for use in safety and
+    mission critical applications that require provable dependability.
+
+    1 tab == 4 spaces!
+*/
+
+#ifndef FREERTOS_CONFIG_LINUX_H
+#define FREERTOS_CONFIG_LINUX_H
+
+// This file is included in the common FreeRTOSConfig.h.
+
+#endif // FREERTOS_CONFIG_LINUX_H

components/freertos/FreeRTOS-Kernel/portable/linux/include/freertos/portmacro.h

@@ -0,0 +1,34 @@
+#pragma once
+
+#include "esp_attr.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define portBYTE_ALIGNMENT			16
+
+/* Type definitions. */
+#define portCHAR		uint8_t
+#define portFLOAT		float
+#define portDOUBLE		double
+#define portLONG		int32_t
+#define portSHORT		int16_t
+#define portSTACK_TYPE	uint8_t
+#define portBASE_TYPE	int
+// interrupt module will mask interrupt with priority less than threshold
+#define RVHAL_EXCM_LEVEL    4
+
+typedef portSTACK_TYPE			StackType_t;
+typedef portBASE_TYPE			BaseType_t;
+typedef unsigned portBASE_TYPE	UBaseType_t;
+typedef uint32_t TickType_t;
+#define portMAX_DELAY ( TickType_t ) 0xffffffffUL
+
+typedef int portMUX_TYPE;
+
+#define portTICK_PERIOD_MS			( ( TickType_t ) 1 )
+
+#ifdef __cplusplus
+}
+#endif