Removed APN name and types from PreciseDataConnectionState

The APN name and type bitmasks should come from APN setting.
Also fixed a regression caused by ag/9931487 that the APN
field in precise data connection state is changed to APN type in
string, instead of the APN name.

Bug: 161572838
Test: FrameworksTelephonyTests
Change-Id: If19980be29c13c783f1964d3fce9505a08570f7e