For CC6UL, when setting a new key, an "enc" flag must be added to the rootfs in
the "mtdparts" U-Boot variable.
After that a reboot is needed, so the recovery command must be modified to
remove the encryption key and proceed with the rest of commands in the next
boot.
When updating the firmware, a format of the rootfs partition is always
performed, independently if a new encryption key has just been configured.
In case only the encryption key is being configured, we also need to reboot to
format the rootfs properly.
https://jira.digi.com/browse/DEL-3685
Signed-off-by: Tatiana Leon <tatiana.leon@digi.com>
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