drm: Driver-specific ioctls range from 0x40 to 0x9f

DRM_COMMAND_END is 0xa0, so the last driver ioctl is 0x9f, not 0x99.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/include/uapi/drm/drm.h b/include/uapi/drm/drm.h
index 9abbeb9..b0b8556 100644
--- a/include/uapi/drm/drm.h
+++ b/include/uapi/drm/drm.h
@@ -780,7 +780,7 @@
 
 /**
  * Device specific ioctls should only be in their respective headers
- * The device specific ioctl range is from 0x40 to 0x99.
+ * The device specific ioctl range is from 0x40 to 0x9f.
  * Generic IOCTLS restart at 0xA0.
  *
  * \sa drmCommandNone(), drmCommandRead(), drmCommandWrite(), and