Merge "Create a convenience method to get the CarrierService package." am: 18d9d9feb1 am: 7137e2510e am: 3c24858e5c

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1902412

Change-Id: I3ce17e1f07484a0dffc90a87850c279a4be765d2