AT91: Convert RTC and RTT drivers to be independent of processor base-address

[Jean-Christophe PLAGNIOL-VILLARD]

On 21:41 Fri 29 Apr     , Andrew Victor wrote:
> For supporting multiple AT91 processors in a single kernel image, the
> following changes to the RTC and RTT driver support:
>  * pass base addresses via platform resources
>  * replace calls to at91_sys_read() / at91_sys_write()
>  * rename AT91_RTT/AT91_RTC to AT91xxx_RTT/AT91xxx_RTC to denote they
> are processor-specific.
> 
> Signed-off-by: Andrew Victor <linux at maxim.org.za>
I work on similar patch

but here we have an issue we need to pas the GPBR resource also

Best Regards,
J.