Merge "[security] SubscriptionGroup is exposed to unprivileged callers" into sc-dev am: 606c1c77 am: c7665fb5

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14440165

Change-Id: Ie3f81139b5295cf030c8e3e98cb789de057011bf