fix typo, brihtness -> brightness
LiveOPP: Add a config to have extended steps

...as it might cause many unexpected kernel panics (null pointer, can't handle paging, app FC etc etc)..

Signed-off-by: cocafe <136279202@qq.com>
abb-fg: Fix missing poweroff_threshold interface

Thanks zwliew@Gtihub

Signed-off-by: cocafe <136279202@qq.com>
defconfig: Dump configs