ARM: pxa: use pdev resource for palmld mmio

The palmld header is almost unused in drivers, the only
remaining thing now is the PATA device address, which should
really be passed as a resource.

Cc: linux-ide@vger.kernel.org
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>