sh_eth: fix result of sh_eth_check_reset() on timeout

When  the first loop in sh_eth_check_reset() runs to its end, 'cnt' is 0, so the
following check for 'cnt < 0' fails to catch the timeout.  Fix the  condition in
this check, so that the timeout  is actually reported.
While at it, fix the grammar in the failure message...
Signed-off-by: NSergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/renesas/sh_eth.c

@@ -897,8 +897,8 @@ static int sh_eth_check_reset(struct net_device *ndev)
 		mdelay(1);
 		cnt--;
 	}
-	if (cnt < 0) {
-		pr_err("Device reset fail\n");
+	if (cnt <= 0) {
+		pr_err("Device reset failed\n");
 		ret = -ETIMEDOUT;
 	}
 	return ret;