SOL006 - Mirror of NFVSOL(20)000027 for v2.8.1
This is a mirror of the CR NFVSOL(20)000027 that changed affinityOrAntiAffinityGroupId in VNFD and NSD from a list to a leaf-list. That CR is being tracked as part of #17 (closed).
In YANG, list consists of multiple attributes, while leaf-list consists of a single item or is scalar. Since affinityOrAntiAffinityGroupId is a scalar list of ids, it should be a leaf-list, not a list.