fix code type and mention api level 21 exception for bindService()
fix code type and mention api level 21 exception for bindService()

Change-Id: I45460a1559960a32818e9cc88b1241b26f2f1f7d

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