merge aosp/sr fixes:
- updater: add missing header to fix compiler warnings
- updater: merge SR "Don't abort on read_file if the file is missing."
- merge SR "fix unnecessarily slow writing of EMMC partitions"
easier editing of default menu height at compile time
display total menu height and not only the increase value
6.56.6 / libtouch_gui 1.41
better handling of errors in show battery level
fix compiler warnings introduced by new scroll sensitivity code
6.56.8
Merge upstream beta changes
Never unmount /data on 2nd recovery