Merge "Add searchable metadata attribute for injected tiles." into udc-qpr-dev am: 5bc1e9b3

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/24792152



Change-Id: Ib3583d5f3a5b7f1086936d848ca41d7921fbded7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>