Export cpu_core_map.

This is actually a build fix for 2.6.27. If you select SFC=m, you get a missing symbol build failure due to cpu_core_map not being exported. The function actually being used is topology_core_siblings.

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Tony,

I realize there was discussion about topology_core_siblings being the wrong thing for the SFC driver to use. I think this change is justified despite that discussion. This also gets an allmodconfig to build again for ia64. This patch merely brings parity between x86 and ia64.

Thanks,
Robin

Robin,

Ok, I give in ... I've queued this locally and I'll push and ask Linus to pull in the next few days.

-Tony