drm/kms: fix kms helper license + Kconfig

Allow the KMS module to work properly, and also rename
it to KMS_HELPER so its clearer what its for.

Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index 41086e9..8eee4a6 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -34,6 +34,10 @@
 #include "drm_fb_helper.h"
 #include "drm_crtc_helper.h"
 
+MODULE_AUTHOR("David Airlie, Jesse Barnes");
+MODULE_DESCRIPTION("DRM KMS helper");
+MODULE_LICENSE("GPL and additional rights");
+
 static LIST_HEAD(kernel_fb_helper_list);
 
 bool drm_fb_helper_force_kernel_mode(void)