StageFrightRecorder: Enable meta-data mode for VP8 hardware encoder.

Meta-data mode for input is preferred (rather required) for recording
with camera v1. This capability is queried and enabled per codec; enable
it for VP8 hardware encoder.

Bug: 17664960

Change-Id: I4735c61670ebe0a555002cc25ef3ed823ab02f1f
1 file changed