Enable EMERGENCY mobile connections.

Hooks the ConnectivityManager.TYPE_MOBILE_EMERGENCY,
PhoneConstants.APN_TYPE_EMERGENCY, and NetworkCapabilities.NET_CAPABILITY_EIMS
together so carrier apps can request connections to this APN.

bug:21785357
Change-Id: I8d0004d77849e3f214b89c48067b09b288891f9f
1 file changed