Replace FABRIC_NODE_ID with FABRIC_GROUP_ID.
Replace FABRIC_NODE_ID with FABRIC_GROUP_ID.

Hostboot changed the name of that attribute.

Signed-off-by: Matt Spinler <c000c989d08c98662d98f15448f11de169feb92d@us.ibm.com>

open-power/serverwiz,open-power/serverwiz