Addresses a build failure that occurs when flash encryption is enabled with default configurations.
The build failure did not manifest in the CI environment because the configuration
CONFIG_SECURE_FLASH_REQUIRE_ALREADY_ENABLED is set in sdkconfig.ci.
This configuration is responsible for reducing the bootloader size.
Closes https://github.com/espressif/esp-idf/issues/12619
When the flash encryption is enabled then we do not need to change the partition table.
The partition_example.csv should not have fixed offsets for partitions because we want to move the whole table.
The fixed offsets in the table were cleared.