ultrahdr: Fix nan occurence during xmp generation am: cd3f6373 am: 223de5d0 am: 1668a39a am: 25767057

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/23539346



Change-Id: I1ae7dd2e5d682bd604255880982984285b33a769
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>