powerpc: 83xx: add support for the 8360 based kmeter1 board.

Hello

This patch series adds support for the keymile board kmeter1 based on a MPC8360 CPU from freescale.

The patches 1/5 - 3/5 are adding the basic support for this board. The patches 4/5 and 5/5 do some common cleanups for the keymile boards.

changes since v1:

- rebased against current HEAD
commit e0b0ec843085f96f4fe0738424835ee90e58bc00

- Patch 4/5 using board_eth_init () for the Piggy Test

bye,
Heiko

DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
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