sepolicy: add device-specific sepolicies

Change-Id: Ia337b3448f20e8e77ea0c4d07a0d7090d7ba34f7
telephony: show apn settings

Change-Id: Ib439e90eeee33c681253d5c72292a3887c679ff0
telephony: get imsi from sim

Change-Id: I0d7ef078de4843d848ed8ab9bea465c2d649e1e5