The following patch generalises the use of PSC1.4 for IDE Reset. The idea
behind is that most probably many 5200 designs will be similiar to IceCube,
_if_ they use the IDE interface. Using the otherwise quite useless PSC1.4
for UDE-Reset seems an obvious choice then.
Instead of continuosly adding more and more boards into the #if defined ()
chain, one define
CONFIG_IDE_RESET_USE_PSC1_4 can be added to the board's configuration file.
If someone else uses another I/O port, that can be easyly added in a
similiar way.
This patch patches cpu/mpc5xxx/ide.c AND include/config/IceCube.h.
Thanks, Pierre, for the good work, the driver works fine on our board.
