bootloader/flash_encrypt: added esp32s2 flash encryption code on build system and enabled example

flash_enctryption: enabled flash encryption example on esp32s2

bootloader: raise WDT overflow value providing sufficient interval to encrypt app partition

flash_ encrypt: Fixed the TODOs on flash encryption key generation for esp32s2

flash_encryption: added secure boot features to flash enctryption for esp32s2

bootloader: leave only esp32s2 compatible potentially insecure options on menuconfig.

flash_encryption: removed secure boot version 1 from esp32s2 encryption code

flash_encryption:  added  CONFIG_SECURE_FLASH_REQUIRE_ALREADY_ENABLED option for esp32s2

flash_encryption: fixed the count of left plaintext flash

flash_encryption: disable dcache and icache download when using encryption in release mode

flash_encryption:  add cache potentally insecure options for s2 chips

flash_encryption: fixed bug which bricked some chips in relase mode

components/bootloader_support/CMakeLists.txt

@@ -6,17 +6,13 @@ set(srcs
     "src/bootloader_random.c"
     "src/bootloader_utility.c"
     "src/esp_image_format.c"
+    "src/flash_encrypt.c"
     "src/flash_partitions.c"
     "src/flash_qio_mode.c"
     "src/bootloader_flash_config_${IDF_TARGET}.c"
     "src/bootloader_efuse_${IDF_TARGET}.c"
     )
 
-if(IDF_TARGET STREQUAL "esp32")
-    # Not supported on ESP32S2 yet
-    list(APPEND srcs "src/flash_encrypt.c")
-endif()
-
 if(BOOTLOADER_BUILD)
     set(include_dirs "include" "include_bootloader")
     set(priv_requires micro-ecc spi_flash efuse)