[automerger skipped] [automerge] Move some utility methods to MdnsUtils 2p: 64732f379f am: 66b1a96a66 -s ours am: ae69a2c8b3 -s ours am: e6bfd6975c -s ours am: 0d8e44c4e4 -s ours

am skip reason: Merged-In I92ba54809c2b291fd1f176fbda80a347f5944288 with SHA-1 5fffb2d960 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/23074355

Change-Id: Ie3e1552826ce0acfb76066af8899bcb62839cab1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>