Increase socket buffer size to the maximum WINC1500 transfer size

Author: sandeepmistry

src/socket/include/socket_buffer.h

@@ -58,7 +58,7 @@ extern "C" {
 #define SOCKET_BUFFER_UDP_SIZE					(SOCKET_BUFFER_UDP_HEADER_SIZE + 64u)
 #define SOCKET_BUFFER_TCP_SIZE					(64u)
 #else
-#define SOCKET_BUFFER_MTU						(1400u)
+#define SOCKET_BUFFER_MTU						(1446u)
 #define SOCKET_BUFFER_UDP_SIZE					(SOCKET_BUFFER_MTU)
 #define SOCKET_BUFFER_TCP_SIZE					(SOCKET_BUFFER_MTU)
 #endif