treewide: fix comments and printk msgs

This patch fixed several typo in printk from various
part of kernel source.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/misc/fsa9480.c b/drivers/misc/fsa9480.c
index a725c79..71d2793 100644
--- a/drivers/misc/fsa9480.c
+++ b/drivers/misc/fsa9480.c
@@ -396,7 +396,7 @@
 				IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
 				"fsa9480 micro USB", usbsw);
 		if (ret) {
-			dev_err(&client->dev, "failed to reqeust IRQ\n");
+			dev_err(&client->dev, "failed to request IRQ\n");
 			return ret;
 		}