mpc83xx, keymile boards: enable DM_ETH and add DTS
- mpc83xx: remove unneeded extern declaration in cpu_init
- powerpc, qe: fix codingstyle issues for drivers/qe
- powerpc, qe: add DTS support for parallel I/O ports
- net, qe: add DM support for QE UEC ethernet
- add DTS for all mpc83xx based boards from keymile
mainly they are not mainlined to linux.
- add u-boot specific dtsi
- add stdout-path
- add missing ucc4 par_io definitions, which were
in board code, but not in linux DTS
- remove not used ethernet nodes