Framework: Forward port Long press back to kill app (2/2)

Change-Id: Ia88d8a2753e203afb8d6117a643c33127f991c4a

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

Conflicts:
	core/res/res/values/config.xml
	core/res/res/values/symbols.xml
Revert "AudioManager: make swap volume buttons RTL aware"

This reverts commit db26b426b5f1a9f0ad2e0e5bf24a51c600e72ac0.
Revert "Forward Port: Swap volume buttons when the screen is rotated by 90 or 180 degrees"

This reverts commit c69d573bdc27f653d59829b95ae90be876cb175b.