- needs applying aml_autoscript to work
- add "Reboot from NAND" option to Confluence power menu
- "switch_system" is used for compatibility with old modified bootloaders.

This allows me to have both /dev/env and /dev/nand_env entry and
make fw_printenv/fw_nandenv use the first valid entry

With Amlogic patch the last core would very rarely go online. Revert
this patch to bump performance in high load cases.

projects/Amlogic: add a few aml-specific patches from https://github.com/koying/SPMC and a patch from https://github.com/osmc/osmc to prevent some hangs on reboot

This reverts commit 265dd26d.

projects/Amlogic: Add a "proper" poweroff kernel patch and allow "powering off" in Kodi. Keep suspend as power key action.

For UART debugging.

Should help "unaligned access" errors on first boot

Turn off DVFS for compatibility.

This reverts commit ddd5e356.