Update v2022dev1 from experimental

Closed due !74 (merged)

Kernel 5.10-rc4. Manually tested with all reference boards without regression detected.

Package binaries are available in home OBS project.

Contain the fix for mapping the encrypted file on loopback devices required for encrypted deltas upgrade (see T7506).

Additional fixes in comparison with 5.9.1:

• Rename kzfree() to kfree_sensitive() in our patch
• Explicitly enabled i.MX GPIO support since it is needed for correct work of sdhci-esdhc-imx module