fix:nrf parameter config update to only get method

config/param/nrf_param_config.yaml

@@ -25,6 +25,7 @@ nrf:
       comment: ""
   registeredNFs:
     display: "Registered NFs"
+    method: "get"
     array:
       - name: "index"
         type: "int"

tools/loadpconf/db.go

@@ -32,6 +32,7 @@ type ParamConfig struct {
 	NeId       string `json:"neId"`
 	TopTag     string `json:"topTag"`
 	TopDisplay string `json:"topDisplay"`
+	Method     string `json:"method"`
 	ParamJson  string `json:"paramJson"`
 }
 
@@ -56,6 +57,10 @@ func XormInsertParamConfig(mapJson *map[string]interface{}) (int64, error) {
 				if k == "display" {
 					paramConfig.TopDisplay = fmt.Sprintf("%v", v)
 
+				} else if k == "method" {
+					if v != "" {
+						paramConfig.Method = fmt.Sprintf("%v", v)
+					}
 				} else {
 					pc, _ := json.Marshal(v)
 					paramConfig.ParamJson = fmt.Sprintf("{\"%v\":%v}", k, string(pc))