[PATCH/RFC] powerpc: Add MPC5200 Interrupt Controller support.

[Sylvain Munaut]

Nicolas DET wrote:

> This patch add MPC52xx Interrupt controller for ARCH=powerpc.
>
> It includes the main code in arch/powerpc/sysdev/ ad well as an header file in
> include/asm-powerpc.
>
> The header file has now distinct section for the struct and the IRQ mapping/enconding define
>
> Signed-off-by: Nicolas DET <nd at bplan-gmbh.de>
Acked-by: Sylvain Munaut <tnt at 246tNt.com>