handling (only when nvs encryption is enabled)
* NVS Encryption will now be turned on by default with flash encryption
* Updated the flash encryption example to shocase NVS encryption
along with information on how to configure and use NVS encryption
* Updated respective test case
* Added two partition tables for NVS encryption
i) Table 1- Single factory app, no OTA, encrypted NVS
ii) Table 2- Factory app, Two OTA, encrypted NVS
the binary size check in example test was removed long time ago. Now we
have updated ttfw_idf to raise exception when performance standard is
not found. These fake performance check will be regarded as error.
Remove them now.
This commit adds one example test case for OTA with SPIRAM
enabled configuration. Additionally it also keeps
`SPIRAM_ALLOW_BSS_SEG_EXTERNAL_MEMORY` enabled to catch any issues
of sort "cache disabled but cached region accessed".
https://github.com/espressif/esp-idf/issues/5354
