more solaris tidies

Don't overspecify the obsolete solaris targets: match solaris* rather
than solaris2.[0-9]*.  Move the sparc-*-solaris2.[0-6]* match later,
and make it sparc*-*-solaris* so that it catches sparcv9 and sparc64.
This change is necessary for internal binutils consistency so that
selecting --target=sparc-sun-solaris2 gets an error that the target is
obsolete, and furthermore that the same target with --enable-obsolete
does not result in runtime errors.

bfd/
	* config.bfd: Don't overspecify obsolete solaris targets.
ld/
	* configure.tgt: Don't overspecify obsolete solaris targets.
	* po/BLD-POTFILES.in: Regenerate.
3 files changed