leds: pm8xxx: Add Pantech's modifications for leds

Change-Id: I30cffd1bdf49e95cde48cb5bc4b7c90efc225a3a
misc: pm8xxx-vibrator: Add Pantech's modifications for vibrator

Change-Id: I761c9c96e6abb5c2c3e653c2d489c11ffa217514