mesa: Rename API_OPENGL to API_OPENGL_COMPAT.

This should help avoid confusion now that we're using the gl_api enum
to distinguishing between core and compatibility API's.  The
corresponding enum value for core API's is API_OPENGL_CORE.

Acked-by: Eric Anholt <eric@anholt.net>
Acked-by: Matt Turner <mattst88@gmail.com>
Acked-by: Kenneth Graunke <kenneth@whitecape.org>

src/mapi/glapi/gen/gl_genexec.py

@@ -166,7 +166,7 @@ class PrintCode(gl_XML.gl_print_base):
             condition_parts = []
             if f.desktop:
                 if f.deprecated:
-                    condition_parts.append('ctx->API == API_OPENGL')
+                    condition_parts.append('ctx->API == API_OPENGL_COMPAT')
                 else:
                     condition_parts.append('_mesa_is_desktop_gl(ctx)')
             if 'es1' in f.api_map: