Revert "zaurus collie: remove hardcoded mem=64M"

Unfortunately the default for sa1100/collie is 16M so for collie it is necessary
to specify mem=64M on cmdline.
The very rare 5000D users will have to change that to mem=32M.

This reverts commit f4f05028f5ad72a81d6620340fe1c92ac6486890.

Signed-off-by: Andrea Adami <andrea.adami@gmail.com>
linux-yocto_3.14: zaurus: modularize/remove tcp/ip to reduce kernel size

Signed-off-by: Andrea Adami <andrea.adami@gmail.com>
linux-yocto_3.14: zaurus: config serial 8250 as module

Zaurus is using pxa/sa1100 serial so we only need the
pcmcia serial cs for i.e. bluetooth cf cards.
Avoid device address conflict on pxa (fix pending upstream).

Signed-off-by: Andrea Adami <andrea.adami@gmail.com>