Merge "Add Developer Options string to xml." into tm-dev am: 566c676d am: 74211e40

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/17826466



Change-Id: I6e2e1b2898e0d7b7c58d77a19f5e55fa35c5f792
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>