add sh-uclinux

[Kaz Kojima]

Nathan Sidwell <nathan@codesourcery.com> wrote:
>> This patch adds an sh-uclinux target triplet, along with sh1- and sh2- 
>> synonyms.
>> 
>> The results were tested on an sh2-uclinux system.
> 
> I blame Dan.  He told me using all.diff would blow up and so I used a different 
> name.  But of course, I have a tiny attention span, and forgot in the time it 
> took me to browse to the directory in my mailer.

SH specific part looks fine, though the patch includes
the changes for x86 tls tests.

Regards,
	kaz