drm/radeon/kms: allow R500 regs VAP_ALT_NUM_VERTICES and VAP_INDEX_OFFSET

[airlied: fix V_A_N_V to not be safe and fix check to make sure only r500
 - bump userspace version]

Signed-off-by: Marek Olšák <maraeo@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/radeon/r100_track.h b/drivers/gpu/drm/radeon/r100_track.h
index b27a699..fadfe68 100644
--- a/drivers/gpu/drm/radeon/r100_track.h
+++ b/drivers/gpu/drm/radeon/r100_track.h
@@ -64,6 +64,7 @@
 	unsigned			maxy;
 	unsigned			vtx_size;
 	unsigned			vap_vf_cntl;
+	unsigned			vap_alt_nverts;
 	unsigned			immd_dwords;
 	unsigned			num_arrays;
 	unsigned			max_indx;