Ensure service type ends with a dot in discovery am: 2f82fcdd6c am: ed0eb5f385

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

Change-Id: Ie42457bd97946b9c527fcb964f70f77fc6b04889
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>