modules/admin-full: fix 4k vlan option

modules/admin-full/luasrc/model/cbi/admin_network/vlan.lua

@@ -62,15 +62,15 @@ m.uci:foreach("network", "switch",
 					if is_vlan_attr then has_vlan4k = line:match(": (%w+)") end
 					if is_port_attr then has_ptpvid = line:match(": (%w+)") end
 
+				elseif line:match(": enable_vlan4k") then
+					enable_vlan4k = true
+
 				elseif line:match(": enable_vlan") then
 					has_vlan = "enable_vlan"
 
 				elseif line:match(": enable_learning") then
 					has_learn = "enable_learning"
 
-				elseif line:match(": enable_vlan4k") then
-					enable_vlan4k = true
-
 				elseif line:match(": max_length") then
 					has_jumbo3 = "max_length"
 				end