AM30: patch for thinko in my previous patch

[Alexandre Oliva]

On Apr 14, 2000, Alexandre Oliva <aoliva@cygnus.com> wrote:

> introduced a bug in the assembler.  It would no longer recognize
> instructions marked as AM30 :-(

> Here's a patch.  Ok to install?  Release branch?

It turned out that the insns marked as AM30 are *not* supposed to be
available on AM33, so the patch was wrong.  Nevertheless, there's
still a severe bug on current CVS (release branch included), that
causes it to reject any AM30-specific instructions.  Here's a patch.
Ok to install?