input: Add workaround for broken hardware keyboard support

add overlay to work around hardware keyboard being enabled by default
on some devices that don't have a hardware keyboard!!?! eg. n7000

Change-Id: Ib95ac8d9736e85b7cdcebea7b35d42d291b266f9

Conflicts:
	core/res/res/values/config.xml

	modified:   core/res/res/values/config.xml
	modified:   core/res/res/values/public.xml
	modified:   services/java/com/android/server/wm/WindowManagerService.java
QS: Fix dynamic IME tile does not show up

need to be cast to the mIMETile reference so that
visibility gets toggled.

Change-Id: Id18f979f5dad35d36a2e10a1acdaacfa8622a2e6