ramdisk: Sync with L-Preview changes

Signed-off-by: CallMeAldy <skrillization@gmail.com>

Conflicts:
	ramdisk/charger
	ramdisk/default.prop
	ramdisk/file_contexts
	ramdisk/fstab.mako
	ramdisk/init
	ramdisk/init.environ.rc
	ramdisk/init.mako.rc
	ramdisk/init.rc
	ramdisk/init.trace.rc
	ramdisk/property_contexts
	ramdisk/res/images/charger/battery_fail.png
	ramdisk/sbin/adbd
	ramdisk/sbin/healthd
	ramdisk/seapp_contexts
	ramdisk/sepolicy
	ramdisk/ueventd.mako.rc
	ramdisk/ueventd.rc