linux-yocto_3.14: zaurus: remove unused filesystems to reduce kernel size

Revert to the 3.2 pre-yocto settings.
Removed yaffs, reiserfs, btrfs, most xattr and posix options.
Make NFS modular.

Signed-off-by: Andrea Adami <andrea.adami@gmail.com>
zaurus collie: remove hardcoded mem=64M

Surely rare today, the SL-5000D has only 32MB ram.
Remove historical setting used for mtd-ram.

Signed-off-by: Andrea Adami <andrea.adami@gmail.com>
linux-yocto: refresh collie-LH28F640BF patch

as sent upstream

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