vdpau: Add missing printf format specifier.

Fix defect reported by Coverity Scan.

Extra argument to printf format specifier (PRINTF_ARGS)
extra_argument: This argument was not used by the format string: vmixer->max_layers.

Fixes: 89b986325227 ("vdpau: Add support for parameters")
Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Leo Liu <leo.liu@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7200>
(cherry picked from commit 3fe5c13d71b831b42798755a3ba983b5de6d1563)
2 files changed