update atk_version property for 4.3
update atk_version property for 4.3

xepan/atk4,svisystem/atk4,svisystem/atk4,samratcis/atk4,samratcis/atk4,atk4/atk4,xepan/atk4,xepan/atk4,atk4/atk4,samratcis/atk4,atk4/atk4,svisystem/atk4,atk4/atk4