apq8064-common: Give keydisabler rights to gpio-keys node

* CMHW keydisabler requires access to this to actually disable the
  the hardware key through the gpio-keys driver.

Change-Id: I2dd108572f1d4ab67212b494de0102cafa0f628c
apq8064-common: Correctly route to headset mic

Change-Id: I3cbe993c7003b4fe5cd096f6e39765500a7f2b97
apq8064-common: Remove duplicate config overlay

Change-Id: I1a15ad6f6837191a045ff76dd0c05b082181a176
apq8064-common: Select SEPERATED_HEADSET_MIC

* Voice Headset requires a different ACDB ID, so select this separate
  use case to enable it.

Change-Id: I0164f7291351d90059c7e85aa9a4693b359a17ba