Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c
index de744ca..18f5458 100644
--- a/drivers/s390/cio/cio.c
+++ b/drivers/s390/cio/cio.c
@@ -564,7 +564,7 @@
 }
 
 static struct irqaction io_interrupt = {
-	.name	 = "IO",
+	.name	 = "I/O",
 	.handler = do_cio_interrupt,
 };