Ensure service type ends with a dot in discovery am: 2f82fcdd6c

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2584551

Change-Id: I30b3d1ebe49be670f70b52a7aa75603234f99564
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>