[1/2] Permit home button wake to be configurable

To activate, enable bool config_show_homeWake in
device overlay/packages/apps/Settings/res/values

Change-Id: I00afe89ba5bf36d74b93a40b9d15eef2e805611f

Conflicts:
	res/values/cm_strings.xml
	res/xml/display_settings.xml
	src/com/android/settings/DisplaySettings.java