frontends/omx/enc: fix omx h264 encoding force-keyframe-period issue.

poc was not set to 0 in IDR frames except the first one.

Signed-off-by: Ruijing Dong <Ruijing.Dong@amd.com>
Reviewed-by: Leo Liu <leo.liu@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7293>
1 file changed