Add more log in NetworkMonitor for debugging

Add more log to confirm:
1. The feature of using neighbor resource by mcc is enabled or
   not.
2. TelephonyManager#getAllCellInfo() returns null or not.
3. If the carrier id matches the sCarrierIdToMccMnc.
4. If the using neighbor resource by mcc is enabled, then checking
   the sim state is ready or not.
5. If the getLocationMcc() can get the mcc or not.

Bug: 158541064
Test: 1. Build & flash.
      2. Check the log.
      3. Dump bugreport
      4. atest NetworkStackTests
Change-Id: Ib2b569234f670c62a1fc2f41463da76420cdf765