Support ESP32S3 Beta 3 target

Update ROM API. Port changes from bringup branch.

components/esp_rom/include/esp32s3/rom/usb/usb_persist.h

@@ -0,0 +1,50 @@
+// Copyright 2019-2020 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.
+
+#pragma once
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// USB persistence flags.
+
+//This bit indicates persistence has been enabled, that is, the USB initialization routines should not
+//reset the USB device as the device still is initialized and the host detected it with the same cdcacm/dfu
+//descriptor as the ROM uses; we can just re-initialize the software side and have at 'er.
+#define USBDC_PERSIST_ENA (1<<31)
+
+//This bit indicates to the ROM that we rebooted because of a request to go into DFU mode; the ROM should
+//honour this request.
+#define USBDC_BOOT_DFU (1<<30)
+
+
+//This being non-0 indicates a memory location where a 'testament' is stored, aka a piece of text that should be output
+//after a reboot. Can contain core dump info or something.
+#define USBDC_TESTAMENT_LOC_MASK 0x7FFFF //bits 19-0; this is added to a base address of 0x3FF80000.
+
+//The testament is a FIFO. The ROM will output all data between textstart and textend; if textend is lower than textstart it will
+//output everything from textstart to memend, then memstart to textend.
+typedef struct {
+    char *memstart; //start of memory region
+    char *memend;   //end of memory region
+    char *textstart; //start of text to output
+    char *textend;
+} usbdc_testament_t;
+
+#ifdef __cplusplus
+}
+#endif