Merge "Add flag LOAD_NOTIFICATIONS_BEFORE_THE_USER_SWITCH_IS_COMPLETE." into udc-dev am: 9d872471 am: 0a255061

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22764141



Change-Id: If99af7e4331ef3e4a9debc054a06e693bfc9a683
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>