HID: elan: fix spelling mistake "registred" -> "registered"

Trivial fix to spelling mistake in hid_err error message
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

drivers/hid/hid-elan.c

@@ -497,7 +497,7 @@ static int elan_probe(struct hid_device *hdev, const struct hid_device_id *id)
 		return 0;
 
 	if (!drvdata->input) {
-		hid_err(hdev, "Input device is not registred\n");
+		hid_err(hdev, "Input device is not registered\n");
 		ret = -ENAVAIL;
 		goto err;
 	}