[PATCH v2] powerpc/xive: Do not skip CPU-less nodes when creating the IPIs

[Cédric Le Goater]

> I forgot to add that this version does break irqbalance anymore, since
                                        
                                ... does not break ...

Sorry for the noise,

> Linux is not mapping interrupts of CPU-less nodes.
> 
> Anyhow, irqbalance is now fixed : 
> 
>   https://github.com/Irqbalance/irqbalance/commit/a7f81483a95a94d6a62ca7fb999a090e01c0de9b
> 
> So v1 (plus irqbalance patch above) or v2 are safe to use. I do prefer 
> v2.
> 
> Thanks to Laurent and Srikar for the extra tests,
> 
> C.