d2-common: use proper hardware key bit field

This allows remapping of the proper keys in System > Hardware keys

Change-Id: I62ee00251b98ec38734e26e8a887f845857169b8
Revert "d2-common: overlay: increase pie_trigger_height"

This reverts commit a4227a5c11c6d9f933f775237f70da33686ae2cc.
Merge remote-tracking branch 'CM/cm-10.1' into jellybean

Conflicts:
	overlay/frameworks/base/core/res/res/values/config.xml