frontends/omx/h265: Check the pps set before the scaling data

Certain clip has no scaling list data in the pps set

Signed-off-by: Leo Liu <leo.liu@amd.com>
Reviewed-by: Boyuan Zhang <Boyuan.Zhang@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7240>
1 file changed