ARM: pxa: maybe fix gpio lookup tables

From inspection I found a couple of GPIO lookups that are
listed with device "gpio-pxa", but actually have a number
from a different gpio controller.

Try to rectify that here, with a guess of what the actual
device name is.

Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Cc: stable@vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>