Avoid conflicts with similar declaration of MAX_SOCK_NUM (#8)

Author: agdl

src/WiFiClient.cpp

@@ -125,7 +125,7 @@ size_t WiFiClient::write(uint8_t b) {
 }
 
 size_t WiFiClient::write(const uint8_t *buf, size_t size) {
-  if (_sock >= MAX_SOCK_NUM)
+  if (_sock >= WIFI_MAX_SOCK_NUM)
   {
 	  setWriteError();
 	  return 0;

src/utility/wl_definitions.h

@@ -40,7 +40,7 @@
 // Maximum size of a SSID list
 #define WL_NETWORKS_LIST_MAXNUM	10
 // Maxmium number of socket
-#define	MAX_SOCK_NUM		4
+#define	WIFI_MAX_SOCK_NUM	4
 // Socket not available constant
 #define SOCK_NOT_AVAIL  255
 // Default state value for Wifi state field