Fix bug with parsing vectors am: 778b15a20b

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/23231057

Change-Id: I51553c0ad4f1f39ff3d7d229f4b43822dbb923df
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>