include: Add GL_MESA_program_binary_formats to GL/GLES2 ext.h files

Thus was merged into the OpenGL Registry in version
667c5a253781834b40a6ae9eb19d05af4542cfe1.

Ref: https://github.com/KhronosGroup/OpenGL-Registry/pull/127
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
diff --git a/include/GLES2/gl2ext.h b/include/GLES2/gl2ext.h
index cc90a6c..a7d19a1 100644
--- a/include/GLES2/gl2ext.h
+++ b/include/GLES2/gl2ext.h
@@ -2334,6 +2334,11 @@
 #endif
 #endif /* GL_INTEL_performance_query */
 
+#ifndef GL_MESA_program_binary_formats
+#define GL_MESA_program_binary_formats 1
+#define GL_PROGRAM_BINARY_FORMAT_MESA     0x875F
+#endif /* GL_MESA_program_binary_formats */
+
 #ifndef GL_MESA_shader_integer_functions
 #define GL_MESA_shader_integer_functions 1
 #endif /* GL_MESA_shader_integer_functions */