treewide: Fix typo in printk

Correct spelling typo in various part of drivers

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/misc/dummy-irq.c b/drivers/misc/dummy-irq.c
index c37eeed..4d0db15 100644
--- a/drivers/misc/dummy-irq.c
+++ b/drivers/misc/dummy-irq.c
@@ -26,7 +26,7 @@
 	static int count = 0;
 
 	if (count == 0) {
-		printk(KERN_INFO "dummy-irq: interrupt occured on IRQ %d\n",
+		printk(KERN_INFO "dummy-irq: interrupt occurred on IRQ %d\n",
 				irq);
 		count++;
 	}