i605: rename sysfs node for pwm level

Change-Id: I639d2a2984bd040e0319bcd4e362ce7c800bc2f7
i605: unified smdk4x12 init

Change-Id: Id370ef0d5001d380597ba2d971921943638d8edb

Conflicts:
	rootdir/init.smdk4x12.rc
update svdo property

Change-Id: Ib2380b3f9360492b1cda1c09051a2b032b7927fe