opengl: Update registry and headers from Khronos

gl.xml @ r26697:
https://cvs.khronos.org/svn/repos/ogl/trunk/doc/registry/public/api

GLES headers @ r26698:
https://cvs.khronos.org/svn/repos/registry/trunk/public/gles/api

Bug: 15028495
Change-Id: I57e0d8caac2bc2edb10c8252e06ffdb9a5ccf48b
diff --git a/opengl/include/GLES3/gl3.h b/opengl/include/GLES3/gl3.h
index c32a0a0..c9a3175 100644
--- a/opengl/include/GLES3/gl3.h
+++ b/opengl/include/GLES3/gl3.h
@@ -33,12 +33,12 @@
 ** used to make the header, and the header can be found at
 **   http://www.opengl.org/registry/
 **
-** Khronos $Revision: 26320 $ on $Date: 2014-04-17 03:07:07 -0700 (Thu, 17 Apr 2014) $
+** Khronos $Revision: 26696 $ on $Date: 2014-05-17 14:48:55 -0700 (Sat, 17 May 2014) $
 */
 
 #include <GLES3/gl3platform.h>
 
-/* Generated on date 20140417 */
+/* Generated on date 20140517 */
 
 /* Generated C header for:
  * API: gles2