mpc5200: support for the MAN mpc5200 based board mucmc52

- serial Console on PSC1
- 64MB SDRAM
- MTD CFI Flash
- Ethernet FEC
- IDE support

Signed-off-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>