[POWERPC] 83xx: Use of_platform_bus_probe to setup QE devices

Use of_platform_bus_probe to setup devices on the of_platform_bus since its
much cleaner.  We explicitly specify the bus ids since the we want to get rid
of the default mechanism in the future.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

diff --cc arch/powerpc/platforms/83xx/mpc832x_mds.c
Simple merge

diff --cc arch/powerpc/platforms/83xx/mpc8360e_pb.c
Simple merge