[U-Boot] P4080 Reset Vector

[Liu Dave-R63238]

> It look same as other PQ2/3 which using BR0/OR0 to set boot vecror
base address.
> 
> just confirm, do you know CPU will read RCW data before it jump to
0xFFFF_FFFC?

Yes. CPU reset module must fetch RCW and configure CPU itself.
then reset to 0xFFFF_FFFC, it is also same as PQ3.

Thanks,
 Dave