VtsHalMediaOmx: fix OmxCodecAllowedTest to match requirement am: 86e97b5f11 am: da8e650fdd

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2461813

Change-Id: I0b3cca7adef14a665e9a71cb0200c5a44ecbc23a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>