Update Susbcription database to store Ims related settings

Add corresponding columns in Subscription database, and notify
SubscriptionManager to migrate existing values from global
setting.

Bug: 66699661
Test: Manual

Change-Id: Ia773b99b866fe32e997c7730eb90aa141b7272ff
Merged-In: Ia773b99b866fe32e997c7730eb90aa141b7272ff
2 files changed