clocksource/drivers/timer-vt8500: Remove duplicate function name

We print the function name twice in a row in the error message so I've
removed one.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>

drivers/clocksource/timer-vt8500.c

@@ -145,7 +145,7 @@ static int __init vt8500_timer_init(struct device_node *np)
 
 	ret = clocksource_register_hz(&clocksource, VT8500_TIMER_HZ);
 	if (ret) {
-		pr_err("%s: vt8500_timer_init: clocksource_register failed for %s\n",
+		pr_err("%s: clocksource_register failed for %s\n",
 		       __func__, clocksource.name);
 		return ret;
 	}