ARM: kirkwood: enable HIGHMEM in defconfig
ARM: kirkwood: enable HIGHMEM in defconfig

The Kirkwood-based OpenBlocks A7 platform has 1 GB of memory. To make
use of this memory completely, enabling HIGHMEM is needed, so we
enable it by default in the kirkwood_defconfig.

Signed-off-by: Thomas Petazzoni <a5d87d2bd7c424ee5cbdb4e978635bf653d5a005@free-electrons.com>
Acked-by: Andrew Lunn <02e0a999c50b1f88df7a8f5a04e1b76b35ea6a88@lunn.ch>
Acked-by: Gregory CLEMENT <cd8db494d8ed74d7c3f56ec5c769dff3d51dd397@free-electrons.com>
Signed-off-by: Jason Cooper <68c46a606457643eab92053c1c05574abb26f861@lakedaemon.net>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs