[PATCH] arm64: add HAVE_LATENCYTOP_SUPPORT config

[Will Deacon]

On Sat, Nov 07, 2015 at 12:11:16AM +0800, yalin wang wrote:
> i just enable it on ARM64,
> and it can work,
> i don’t see some special requirement to enable this config .

Right, so why does HAVE_LATENCYTOP_SUPPORT exist?

Will