Merge changes I8cad9f50,I9406074e,I0ac64d8f,I01ab39a9,I2cb85c7e, ...

* changes:
  CTS Verifier test for Display.getSupportedModes().
  Test logic for Display.getMode().
  Empty CTS Verifier test for display modes.
  Don't recreate activity on display disconnected.
  Logging for CTS Verifier Test for HDR Capabilities
  Loading spinner for the async test.