pcmcia: Use linux/of_{device,platform}.h instead of asm

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Vitaly Bordug <vitb@kernel.crashing.org>
Acked-by: Olof Johansson <olof@lixom.net>
Acked-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>