Add two aliases for some PointParameters entrypoints for libglx compatibility.

Doing this here rather than on the GLX side since the X monolith hasn't had
Mesa 6.3 imported yet.

idr, I know this is touching a generated file, but I haven't figured out what
needs changing in the generator scripts to make this change happen.  If you
could add that I'd appreciate it.

src/glx/x11/indirect_size.c

@@ -365,6 +365,8 @@ ALIAS( Map2f, Map2d )
 ALIAS( ColorTableParameteriv, ColorTableParameterfv )
 ALIAS( ConvolutionParameteriv, ConvolutionParameterfv )
 ALIAS( PointParameterivNV, PointParameterfvEXT )
+ALIAS( PointParameterfvARB, PointParameterfvEXT )
+ALIAS( PointParameteriv, PointParameterfvEXT )
 
 #  undef HAVE_ALIAS
 #  undef PURE