Update sockets.h

Add the CONNREFUSED error to the Service::Sockets::Errno enum

src/core/hle/service/sockets/sockets.h

@@ -19,6 +19,7 @@ enum class Errno : u32 {
     INVAL = 22,
     MFILE = 24,
     PIPE = 32,
+    CONNREFUSED = 61,
     MSGSIZE = 90,
     CONNABORTED = 103,
     CONNRESET = 104,