Merge "Replace useTls with mode in PrivateDnsConfig" into main am: 452feb2620 am: 73f98a3fa1 am: 38b1e8ead4

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2842798

Change-Id: I0eb3c5b4e832c94c6c9792908a2c9b18a21b8bbc
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>