[bugfix] Fix fex and micro_seg_vlan attributes in resource_mso_schema_site_anp_epg_bulk_staticport to be correctly set when index shift occur in the static_ports list (DCNE-223)

[bugfix] Fix fex and micro_seg_vlan attributes in resource_mso_schema_site_anp_epg_bulk_staticport to be correctly set when index shift occur in the static_ports list (DCNE-223) #78