Merge "Add onSupportedTetheringType callback" am: c4379c2440 am: 8729ce2bde

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/1940847

Change-Id: I3fa359850089755df7f09f217eb11ad857399f8f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>