drm/fourcc: Fix fourcc_mod_code() definition

Avoid a compiler warnings when the val parameter is an expression.

Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding 2017-11-01 15:20:04 +01:00
commit 5843f4e02f