Merge "Revert "[Media] Update background gradient scrim to use album theme colors."" into tm-dev am: 783f9c90 am: b5f75b43 am: 709410a3 am: 2476fbb1

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18027822



Change-Id: I05bf6aad54200c2276fc2924c7eea1df8dc67011
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>