[patch] h8300: Fix target/11805

[Roger Sayle]

Hi Toshi,
> SuperH is not the owner of the H8/300 architecture.

I had assumed the SH was a cc0 target, I didn't mean to imply anything
of the h8300's ownership.  My mistake.  I apologise for any confussion
this may have caused.  However a MODE_CC vs. cc0 evaluation would be
useful to have for any target, but probably more beneficial to existing
cc0 backends (not all of which are developed purely voluntarily).

Roger
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