Correct comment

Author: sandeepmistry

examples/Google Cloud Platform IoT Core/GCP_IoT_Core_GSM/GCP_IoT_Core_GSM.ino

@@ -112,7 +112,7 @@ void connectMQTT() {
   Serial.println(" ");
 
   while (!mqttClient.connected()) {
-    // Calculate the JWT and assign it as the username
+    // Calculate the JWT and assign it as the password
     String jwt = calculateJWT();
 
     mqttClient.setUsernamePassword("", jwt);

examples/Google Cloud Platform IoT Core/GCP_IoT_Core_NB/GCP_IoT_Core_NB.ino

@@ -109,7 +109,7 @@ void connectMQTT() {
   Serial.println(" ");
 
   while (!mqttClient.connected()) {
-    // Calculate the JWT and assign it as the username
+    // Calculate the JWT and assign it as the password
     String jwt = calculateJWT();
 
     mqttClient.setUsernamePassword("", jwt);

examples/Google Cloud Platform IoT Core/GCP_IoT_Core_WiFi/GCP_IoT_Core_WiFi.ino

@@ -106,7 +106,7 @@ void connectMQTT() {
   Serial.println(" ");
 
   while (!mqttClient.connected()) {
-    // Calculate the JWT and assign it as the username
+    // Calculate the JWT and assign it as the password
     String jwt = calculateJWT();
 
     mqttClient.setUsernamePassword("", jwt);