[automerger skipped] [automerge] Add HotwordMetricsLogger for statistics...

[automerger skipped] [automerge] Add HotwordMetricsLogger for statistics logging. 2p: b8c2da25 am: bcae1a5f -s ours am: 543ca9f7 -s ours

am skip reason: Merged-In If436aae1b4ebdb06c7bd5a1c0b8d6df4e94488cd with SHA-1 e13c17d2 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17184397

Change-Id: I0fb0704e6a1a29aad3928c6ee3fdffb74841e176