[SH64 Patch] Reenable gprof

[DJ Delorie]

> The attached patch reenables it by unifying the sh and sh64 entries in
> configure.in .
> 
> Note that the configure script needs to be regenerated after the patch
> is applied.

Up to the sh maintainers, but please remember to update both src and
gcc for any toplevel changes.  Also, please review the configure diff
before committing, to make sure the appropriate version of autoconf
got used ;-)