Merge "Update search hint text to be more generic" into udc-mainline-prod am: 0bed390a

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/DocumentsUI/+/26066210



Change-Id: I641cba07c1389b48384c9991370ed2e730440cbe
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>