Added few more APIs support

Added getAllSubscriptionInfoList and setPhoneNumber support. Allowed
carrier privilege apps to get full subscription info on their
associated subscriptions.

Bug: 239607619
Test: atest SubscriptionManagerServiceTest
Merged-In: Id3c0f3afc7a5fc95beb4dde0c570520626244761
Change-Id: Id3c0f3afc7a5fc95beb4dde0c570520626244761