Revert "Revert "Update SubscriptionInfo o use strings for mccmnc""

This reverts commit 0082b161ca42b41925fd5973f1779fc4c46f6034.

Reason for revert: build breaks fixed

Change-Id: I75ea63ceaae6e970ce51a971c9a4635d0ce3f9e4
Merged-In: I45c0bfefb7ffe98e3eab8e68d0e1170881ae9f4c
4 files changed