st/omx: fix decoder fillout for the OMX result buffer

st/omx: fix decoder fillout for the OMX result buffer

The call for vl_video_buffer_adjust_size is with wrong order of
arguments, apparently it will have problem when interlaced false;

The size of OMX result buffer depends on real size of clips, vl buffer
dimension is aligned with 16, so 1080p(1920*1080) video will overflow
the OMX buffer

Signed-off-by: Leo Liu <leo.liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Tested-by: Julien Isorce <j.isorce@samsung.com>