Update SocketHelpers.h to expose ping timeout

Author: megacct

libraries/SocketWrapper/src/SocketHelpers.h

@@ -118,9 +118,9 @@ class MbedSocketClass {
    *
    * return: RTT in milliseconds or -1 on error
    */
-  int ping(const char* hostname, uint8_t ttl = 255);
-  int ping(const String &hostname, uint8_t ttl = 255);
-  int ping(IPAddress host, uint8_t ttl = 255);
+  int ping(const char* hostname, uint8_t ttl = 255, uint32_t timeout = 5000);
+  int ping(const String &hostname, uint8_t ttl = 255, uint32_t timeout = 5000);
+  int ping(IPAddress host, uint8_t ttl = 255, uint32_t timeout = 5000);
 
   /*
    * Download a file from an HTTP endpoint and save it in the provided `target` location on the fs
@@ -185,7 +185,7 @@ class MbedSocketClass {
 
   void body_callback(const char* data, uint32_t data_len);
 
-  int ping(SocketAddress &socketAddress, uint8_t ttl, uint32_t timeout = 5000);
+  int ping(SocketAddress &socketAddress, uint8_t ttl, uint32_t timeout);
   static arduino::IPAddress ipAddressFromSocketAddress(SocketAddress socketAddress);
   static SocketAddress socketAddressFromIpAddress(arduino::IPAddress ip, uint16_t port);
   static nsapi_error_t gethostbyname(NetworkInterface* interface, const char* aHostname, SocketAddress* socketAddress);