Merge pull request #784 from thayoon/fix/duplicate-mqtt-client-id

fix(mqtt): update default MQTTBrokerInfo ClientID

Author: cloudxxx8

cmd/res/configuration.yaml

@@ -31,7 +31,7 @@ MQTTBrokerInfo:
   Port: 1883
   Qos: 0
   KeepAlive: 3600
-  ClientId: "device-mqtt"
+  ClientId: "edgex-mqtt-client"
 
   CredentialsRetryTime: 120 # Seconds
   CredentialsRetryWait: 1 # Seconds