Hide SuperUser if SupenSU is installed

Replace Superuser in Settings with SuperSU if it is installed.

Change-Id: I7320105ecb96f4fd073c781b78dd2eecb3923ead
Hide SuperUser if SupenSU is installed Replace Superuser in Settings with SuperSU if it is installed.

Conflicts:
	src/com/android/settings/Settings.java