change SHUTDOWN permission to signatureOrSystem so setup wizard can start ACTION_REQUEST_SHUTDOWN bug: 3201638
change SHUTDOWN permission to signatureOrSystem
so setup wizard can start ACTION_REQUEST_SHUTDOWN
bug: 3201638

Change-Id: I0d422667fa27df5df2fadbf27d4e3677a70db8f1

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base