drm/vmwgfx: Make sure that the multisampling is off

By default SVGA device creates nonmaskable multisampling surfaces, in
which case multisampleCount of 1 means: the first quality setting
of nonmaskable multisampling surface. Lets change it to make sure
that the backends know that multisampling is really off.

Signed-off-by: Zack Rusin <zackr@vmware.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
diff --git a/include/uapi/drm/vmwgfx_drm.h b/include/uapi/drm/vmwgfx_drm.h
index 39ab12f..bb3b91d 100644
--- a/include/uapi/drm/vmwgfx_drm.h
+++ b/include/uapi/drm/vmwgfx_drm.h
@@ -886,7 +886,7 @@
  * @format:           SVGA3d format.
  * @mip_level:        Number of mip levels for all faces.
  * @drm_surface_flags Flags as described above.
- * @multisample_count Future use. Set to 1.
+ * @multisample_count Future use. Set to 0.
  * @autogen_filter    Future use. Set to 0.
  * @buffer_handle     Buffer handle of backup buffer. SVGA3D_INVALID_ID
  *                    if none.