Bug: do_reset issued via netconsole does not reset mpc83xx cpu.

The do_reset routine in the cpu/mpc83xx/cpu.c file does not reset
the mpc83xx cpu when issued via netconsole.

Moving the console output "resetting the board." to the beginning of
the routine before disabling interrupts solved the problem.

Signed-off-by: Michael Zaidman <michael.zaidman@gmail.com>
Acked-by: Detlev Zundel <dzu@denx.de>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>