Add mechanism to add accessibility service or activity into bluetooth...

Add mechanism to add accessibility service or activity into bluetooth 'Related' category am: 02b37352 am: cf507b60 am: 1fc03683

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/17472403



Change-Id: I53d443cb30b01ce07e80d90961df7e902f0bcf1b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>