net/smc911x: fix return from smc911x_send

return value of smc911x_send is ignored, but on sucesseful
send we need return 0 and or error -ETIMEOUT, not opposite.

Signed-off-by: Maxim Uvarov <maxim.uvarov@linaro.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/net/smc911x.c b/drivers/net/smc911x.c
index 5c5ad8b..616b7ce 100644
--- a/drivers/net/smc911x.c
+++ b/drivers/net/smc911x.c
@@ -403,7 +403,7 @@
 
 	ret = smc911x_send_common(priv, packet, length);
 
-	return ret ? 0 : -ETIMEDOUT;
+	return ret ? -ETIMEDOUT : 0;
 }
 
 static int smc911x_recv(struct udevice *dev, int flags, uchar **packetp)