drm/radeon: bump version to 2.51.0

The version 2.51.0 adds OpenGL 4.6 compatibility to
evergreen and cayman.

Signed-off-by: Patrick Lerda <patrick9876@free.fr>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Author: Patrick Lerda

drivers/gpu/drm/radeon/radeon_drv.c

@@ -110,9 +110,10 @@
  *   2.48.0 - TA_CS_BC_BASE_ADDR allowed on SI
  *   2.49.0 - DRM_RADEON_GEM_INFO ioctl returns correct vram_size/visible values
  *   2.50.0 - Allows unaligned shader loads on CIK. (needed by OpenGL)
+ *   2.51.0 - Add evergreen/cayman OpenGL 4.6 compatibility
  */
 #define KMS_DRIVER_MAJOR	2
-#define KMS_DRIVER_MINOR	50
+#define KMS_DRIVER_MINOR	51
 #define KMS_DRIVER_PATCHLEVEL	0
 
 int radeon_no_wb;