drm/radeon/kms: add ni_reg.h

This adds some new NI (northern islands) specific display
register defines.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/radeon/radeon_reg.h b/drivers/gpu/drm/radeon/radeon_reg.h
index 3369ce9..3cd4dac 100644
--- a/drivers/gpu/drm/radeon/radeon_reg.h
+++ b/drivers/gpu/drm/radeon/radeon_reg.h
@@ -55,6 +55,7 @@
 #include "r500_reg.h"
 #include "r600_reg.h"
 #include "evergreen_reg.h"
+#include "ni_reg.h"
 
 #define RADEON_MC_AGP_LOCATION		0x014c
 #define		RADEON_MC_AGP_START_MASK	0x0000FFFF