libultrahdr: correct srgb, p3 calculations and jpeg yuv handling am:...

libultrahdr: correct srgb, p3 calculations and jpeg yuv handling am: 0db53ee3 am: 5ad0df9b am: 2618c5ae

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/23431210



Change-Id: I1fbd8b08cb344525bc038ec1c7aa1eed6bd884e5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>