drm: drop __KERNEL__ protection in drmP.h

drmP.h is internal to the kernel. No need to keep the __KERNEL__
protection.

Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
1 file changed