Add a function to log with a timestamp. am: 763e629f0d am: 0f5cf528e3

Original change: https://android-review.googlesource.com/c/platform/system/logging/+/3470269

Change-Id: I3bc28409d63aa1b82504c1449ef3b522e0281dda
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
tree: 2b1f82518ac51ccb42b6cd1eba1d821ce4802ec0
  1. liblog/
  2. logcat/
  3. logd/
  4. logwrapper/
  5. rust/
  6. OWNERS
  7. PREUPLOAD.cfg
  8. TEST_MAPPING