The Flash encryption example was giving a warning message related to the mount failure of the fatfs partition. The change fixes the behaviour to remove the warning
Updated the flash_encryption example to demonstrate the usage of fatfs encryption. Updated existing test case to ensure accurate and reliable testing. Documentation of storage section extended by security relarted summary. Closes https://github.com/espressif/esp-idf/issues/11551 Closes https://github.com/espressif/esp-idf/issues/13668