Add camera HAL ready property when running from APEX

Allows GCA to poll a property instead of using framework event listener
to determine approximately when the HAL cameras become ready

Bug: 189110511
Test: adb shell getprop
Change-Id: Iff958d71c4c1471d0d9974c6ce7636fdddf65655
2 files changed
tree: 362e5d322b7edd6380f6ddbbce925b9cc9a151f0
  1. common/
  2. devices/
  3. .clang-format
  4. Android.bp
  5. METADATA
  6. OWNERS
  7. PREUPLOAD.cfg