Fix non-x86 specific builds. The changes from glTexImage3DEXT to

Fix non-x86 specific builds.  The changes from glTexImage3DEXT to
glTexImage3D that caused me so many problems during the re-development
of the API scripts reared its ugly head again.  This has been fixed by
tracking the parameter string for each entry-point individually.

This has the annoying side-effect that the names of the parameters in
all aliases of a function must be the same or gl_apitemp.py will
generate bad code. :(  The changes in
src/mesa/glapi/{gl_API.xml,glapitable.h} and src/glx/x11/* are caused
by fixing the parameter names in various function aliases that didn't
match.

Reported by: Eric Anholt, Jacob Jansen