releasetools: remove boot.img handling
latona: don't use fenc sync

Impacts performance for unknown reasons
latona: enable suspend in charger
latona: fstab: update mount options
latona: don't build libaudiohw_legacy
latona: strip debugging symbols from installed wifi modules
latona: always use /sdcard for the internal SD

Use /sdcard for the internal SD to match the symlink created for
backward compatibility.

In recovery the external SD is now mounted in /external_sd.
libaudio: remove dead code
libaudio: enable voice recognition when required
latona: vold: update lun path
latona: enable BOARD_VOLD_EMMC_SHARES_DEV_MAJOR

The internal memory and the external SD use the same major number.
power: update power hal
latona: increase audio sampling rate
latona: power HAL: set ondemand sampling rate
latona: allow suspend in charge mode
latona: ensure the build of make_ext4fs
latona: update BoardConfig
liblights: set LED state in base of flashMode

Fix also LED notifications for some apps.
liblights: ignore LIGHT_ID_ATTENTION

It's causing some issues with some apps and it's not required.
lisensors: fix compass sensor sysfs path