[PATCH] arm64: Kconfig: Increase NR_CPUS default to 512

[Will Deacon]

On Sat, Jan 09, 2021 at 09:36:15PM -0800, vanshikonda at os.amperecomputing.com wrote:
> From: Vanshidhar Konda <vanshikonda at os.amperecomputing.com>
> 
> Increase the default value of NR_CPUS to 512 from 256. This will
> enable the defconfig kernel to support platforms that have upto
> 512 cores.

Do we already support such a platform, and what is it? I'm fine with bumping
the number, it's just nice to be able to say specifically _why_ we're dong
it.

Thanks,

Will