Settings: Volume key cursor control (2/2)

Change-Id: Ibc52b5d0c59558be9a24286ef6f1c6f049e117a3
Settings: Convert AppOps array items to string references

* Avoid future breakage
 This will need conversion of all AOSP translated arrays to strings

Change-Id: I2e52e4013d1232d529ce5b9e3aae3502c42e938a

Conflicts:
	res/values/cm_strings.xml