Cleanup of Vts-Flags

C2 VTS tests use some flags from info files, which are not being
used as bit-flags. This change clears the confusion between extractor
and media-codec flags

Bug: 299201934
Test: atest VtsHalMediaC2V1_0TargetAudioDecTest \
 VtsHalMediaC2V1_0TargetVideoDecTest

Change-Id: I19eea77c9f453884fc275bdf387af27e774c8e62