ARM: kirkwood: Fix address of second XOR engine

ARM: kirkwood: Fix address of second XOR engine

There appears to be an error in the second address of the second XOR
engine in the Kirkwood SoC device tree, which is specified as 0xd0b00
but should be 0x60b00.

For confirmation of address see table 581 page 658 of:

http://www.marvell.com/embedded-processors/kirkwood/assets/FS_88F6180_9x_6281_OpenSource.pdf

Also see definition of XOR1_HIGH_PHYS_BASE in
arch/arm/mach-kirkwood/include/mach/kirkwood.h

Signed-off-by: Quentin Armitage <quentin@armitage.org.uk>
Reviewed-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>