[PATCH] m68knommu: handle non base address 0 memory of M5208EVB board

The Freescale M5208EVB ColdFire eval board is one of the few that
doesn't have its DRAM based at address 0. Handle this special case
in the common ColdFire startup code.

Patch originally from Matt Waddel.

Signed-off-by: Greg Ungerer <gerg@uclinux.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>