Merge "[security] SubscriptionGroup is exposed to unprivileged callers" into sc-dev am: 033176b3 am: 5f035ab2 am: 234066e9

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/opt/telephony/+/14440221

Change-Id: I1470117963399236a5786057edfe77dcf822a2f1