Merge "Support DNS-over-TLS probes in NetworkDiagnostics" am: 64ffa1762f am: d7b0b95a3a

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1011670

Change-Id: I25a06623d87e6971a9dac73bdea82a78fd6124d6
tree: 49c194e1acafd60b8c5301be2f122b1d3088898e
  1. core/
  2. services/
  3. tests/