WiFi: add setTimeout()

Author: pennam

libraries/WiFi/src/WiFi.cpp

@@ -297,6 +297,13 @@ unsigned long arduino::WiFiClass::getTime() {
   return 0;
 }
 
+void setTimeout(unsigned long timeout) {
+  if(!wifi_if) {
+    return;
+  }
+  wifi_if->set_timeout(timeout);
+}
+
 void arduino::WiFiClass::statusCallback(nsapi_event_t status, intptr_t param)
 {
   if (((param == NSAPI_STATUS_DISCONNECTED) ||

libraries/WiFi/src/WiFi.h

@@ -168,6 +168,8 @@ class WiFiClass : public MbedSocketClass {
 
   unsigned long getTime();
 
+  void setTimeout(unsigned long timeout);
+
   friend class WiFiClient;
   friend class WiFiServer;
   friend class WiFiUDP;