clocksource: Fix 'clcoksource' typo in comment

Simple typo in a comment, so fix it.
Signed-off-by: NJames Hartley <james.hartley@imgtec.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

kernel/time/clocksource.c

@@ -792,7 +792,7 @@ int __clocksource_register_scale(struct clocksource *cs, u32 scale, u32 freq)
 	/* Initialize mult/shift and max_idle_ns */
 	__clocksource_updatefreq_scale(cs, scale, freq);
 
-	/* Add clocksource to the clcoksource list */
+	/* Add clocksource to the clocksource list */
 	mutex_lock(&clocksource_mutex);
 	clocksource_enqueue(cs);
 	clocksource_enqueue_watchdog(cs);