separate rom from esp32 component to esp_rom

1. separate rom include files and linkscript to esp_rom
2. modefiy "include rom/xxx.h" to "include esp32/rom/xxx.h"
3. Forward compatible
4. update mqtt

components/esp32/include/rom/sha.h

@@ -1,61 +1,2 @@
-/*
-  ROM functions for hardware SHA support.
-
-  It is not recommended to use these functions directly.  If using
-  them from esp-idf then use the esp_sha_lock_engine() and
-  esp_sha_lock_memory_block() functions in hwcrypto/sha.h to ensure
-  exclusive access.
- */
-// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-#ifndef _ROM_SHA_H_
-#define _ROM_SHA_H_
-
-#include <stdint.h>
-#include <stdbool.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-typedef struct SHAContext {
-    bool start;
-    uint32_t total_input_bits[4];
-} SHA_CTX;
-
-enum SHA_TYPE {
-    SHA1 = 0,
-    SHA2_256,
-    SHA2_384,
-    SHA2_512,
-
-
-    SHA_INVALID = -1,
-};
-
-void ets_sha_init(SHA_CTX *ctx);
-
-void ets_sha_enable(void);
-
-void ets_sha_disable(void);
-
-void ets_sha_update(SHA_CTX *ctx, enum SHA_TYPE type, const uint8_t *input, size_t input_bits);
-
-void ets_sha_finish(SHA_CTX *ctx, enum SHA_TYPE type, uint8_t *output);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _ROM_SHA_H_ */
+#warning rom/sha.h is deprecated, please use esp32/rom/sha.h instead
+#include "esp32/rom/sha.h"