sb_edac: isolate TOHM retrieval
sb_edac: isolate TOHM retrieval

This is preparation of Ivy Bridge support.

Signed-off-by: Aristeu Rozanski <ee301320b683742f3b11e3755b1d0b0f462d2d8c@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <0cae1d1e981e84d16b82ca3d17be8a7f826608d3@samsung.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs