[PATCH] Better timer and RTC handling for 8641HPCN.

[Zhang Wei-r63237]

> > Please use 80.
> > We reserve the first 16 ints for legacy 8259 interrupts. And we  
> > want the
> > virq is the same value to hw-irq.
> 
> Why?

If the virq equals hw-irq, it's clear and simple to user.

Thanks!
Zhang Wei