Merge "stagefright: ACodec: query color format support on specific port" into nyc-dev

        // prefix "flexible" standard ones with the flexible equivalent

        OMX_VIDEO_PARAM_PORTFORMATTYPE portFormat;

        InitOMXParams(&portFormat);

        param.nPortIndex = isEncoder ? kPortIndexInput : kPortIndexOutput;

        portFormat.nPortIndex = isEncoder ? kPortIndexInput : kPortIndexOutput;

        Vector<uint32_t> supportedColors; // shadow copy to check for duplicates

        for (OMX_U32 index = 0; index <= kMaxIndicesToCheck; ++index) {

            portFormat.nIndex = index;