[automerger skipped] Merge "Add toString() to HardwareBuffer" into udc-qpr-dev am: 51bd996c66 am: a5ed2e995f -s ours

am skip reason: Merged-In I7452fd53876eacb0a062d5a5c601594de2190ee1 with SHA-1 2ed5cf9a07 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/23590120

Change-Id: If4f1bfd6f121f3f52a94de80bf22855c7596a523
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>