When the rev2.x silicon mount on the MPC8360EMDS baord,
and if you are using the u-boot version after the commit
3fc0bd15.
to make the ethernet interface usable, we have to setup
the jumpers correctly.

Signed-off-by: Dave Liu <daveliu@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>