st/va: fix incorrect argument in vl_compositor_cleanup

This fixes the mistake introduced in commit
b6737a8bcd03ea68952799144c0c6e6e6679bee9

Signed-off-by: Nayan Deshmukh <nayan26deshmukh@gmail.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
1 file changed