Added delay when checking if device was successfully disconnected from WiFi to avoid crashes

Author: epiller

src/ATT_ESP8266.h

@@ -307,7 +307,9 @@ void Device::disconnectWiFi() {
         disconnectAllThingsTalk();
         WiFi.disconnect();
         disconnectedWiFi = true;
-        while (WiFi.status() == WL_CONNECTED) {}
+        while (WiFi.status() == WL_CONNECTED) { 
+            delay(1000); 
+        }
         debug("Successfully Disconnected from WiFi");
     }
 }

src/ATT_MKR1010.h

@@ -364,7 +364,9 @@ void Device::disconnectWiFi() {
         disconnectAllThingsTalk();
         WiFi.disconnect();
         disconnectedWiFi = true;
-        while (WiFi.status() == WL_CONNECTED) {}
+        while (WiFi.status() == WL_CONNECTED) {
+            delay(1000);
+        }
         debug("Successfully Disconnected from WiFi");
     }
 }