Merge "Add DisplayController in PreviewContext's allowed objects" into tm-dev am: c1ea2da7

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/18198386



Change-Id: I7085cd884b5ef0a1410deac1bc817363deb4b1a2
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>