zero: disable HW overlays to fix problems with powersave-mode
zero: disable HW overlays to fix problems with powersave-mode

Change-Id: I972db0c0427ff1c661869e3582f5aee793fee355

TeamNexus/android_device_samsung_zero-common,TeamNexus/android_device_samsung_zero-common,TeamNexus/android_device_samsung_zero-common,TeamNexus/android_device_samsung_zero-common,TeamNexus/android_device_samsung_zero-common