Refresh subscription info when subid changes

We store the initial subId and check if it has changed so that we always
have the updated subscription info in fillList().

Fixes: 111731641
Test: manually verify that swapping the SIM loads new APNs
Change-Id: I3475915f2c380fb67b2e56436423d491e489d91e
Merged-In: I29492ef016c8ca9836ecf28c787e441629cfecb0
1 file changed