Merge "In VuklanManager make sure we have a valid semaphore context before...

Merge "In VuklanManager make sure we have a valid semaphore context before destroying it." into sc-dev am: f560a753 am: 8eb3cebd am: 78dc71b3

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15301696

Change-Id: I81f383420016664f1a48e6d95b1751df42178942