Add missing non thermal vias footprint for LMZM23601
The symbol for LMZM23601 references the non thermal via version but only the thermal via version was in the lib. Script size definition file https://github.com/pointhi/kicad-footprint-generator/blob/master/scripts/Packages/Package_NoLead__DFN_QFN_LGA_SON/size_definitions/MicroSiP.yaml