zero: do not enable touchkeys if KeyDisabler is active
zero: do not enable touchkeys if KeyDisabler is active

Change-Id: If264e0b72d7f0800b3911d9e2691023e56ebd348

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