Merge "Fix low contrast on work challenge screen emergency call button" into udc-dev am: a34a510a

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/23601981



Change-Id: I25e8ab52aa7a285e22ec067d56d1a4a2e3252ebd
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>