enable watchdog support for all MPC824x boards that have a watchdog
* On MPC5200, restrict FEC to a maximum of 10 Mbps to work around the
"Non-octet Aligned Frame" errors we see at 100 Mbps
* Patch by Sharad Gupta, 14 Sep 2003:
fix SPR numbers for upper BAT register ([ID]BAT[4-7][UL])