switch compat_drm_getclient() to drm_ioctl_kernel()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/drivers/gpu/drm/drm_internal.h b/drivers/gpu/drm/drm_internal.h
index 7299ba0..14dfa9c 100644
--- a/drivers/gpu/drm/drm_internal.h
+++ b/drivers/gpu/drm/drm_internal.h
@@ -145,3 +145,4 @@ static inline int drm_debugfs_crtc_crc_add(struct drm_crtc *crtc)
 #endif
 drm_ioctl_t drm_version;
 drm_ioctl_t drm_getunique;
+drm_ioctl_t drm_getclient;