Merge "CCodec: Validate hdr10PlusInfo with the flexCount" into rvc-dev am: d3c372d58b am: e220e69f9b am: 3cccaf3c58

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/11863719

Change-Id: I1406099eceacc60330453a21d383ee4fd5e7b4a2