radeon/vce: fix vui time_scale zero error

if app pass 0 as frame_rate_num, it should not be encoded to the VUI.

Signed-off-by: Leo Liu <leo.liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Cc: "10.6 11.0" <mesa-stable@lists.freedesktop.org>
1 file changed