Merge "Add new setting key for credential manager default provider" into udc-dev am: 8bf55aeb am: 9e62a967

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22951171



Change-Id: Ib49ec81e773d2f53ef12bda74f359f632934c8af
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>