Merge "Communicate right error code from DPMS to MP in response to...

Merge "Communicate right error code from DPMS to MP in response to STATUS_HEADLESS_SYSTEM_USER_MODE_NOT_SUPPORTED" into udc-dev am: 5c5306fe am: 2edcf7b2 am: 473984ab am: 2a63dfca

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23130321



Change-Id: Ie0e94b1fc9eae1c7d0dda887b2f2cb2d4cf9c1dd
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>