parisc: fix NATIVE set up in build

The ifeq operator does not accept globs, so this little bit of code will
never match (unless uname literally prints out "parsic*").  Rewrite to
use a pattern matching operator so that NATIVE is set to 1 on parisc.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Helge Deller <deller@gmx.de>