RESEND: sysfs: Clarifying meaning of /sys/**/core_siblings on newer platforms

Hi All, Technically, this is a broader question than just SPARC where I initially sent this. I'm sending this here and dropping the test patch as it was SPARC only and this is primarily a sysfs generic platform description question. Before SPARC M7, the notion of core_siblings on SPARC was both

sysfs: Clarifying meaning of /sys/**/core_siblings on newer platforms.

Hi All, Technically, this is a broader question than just SPARC where I initially sent this. I'm sending this here and dropping the test patch as it was SPARC only and this is primarily a sysfs generic platform description question. Before SPARC M7, the notion of core_siblings on SPARC was both