Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/kernel/watchdog_hld.c b/kernel/watchdog_hld.c
index 7138116..247bf0b 100644
--- a/kernel/watchdog_hld.c
+++ b/kernel/watchdog_hld.c
@@ -135,7 +135,8 @@
 		if (__this_cpu_read(hard_watchdog_warn) == true)
 			return;
 
-		pr_emerg("Watchdog detected hard LOCKUP on cpu %d", this_cpu);
+		pr_emerg("Watchdog detected hard LOCKUP on cpu %d\n",
+			 this_cpu);
 		print_modules();
 		print_irqtrace_events(current);
 		if (regs)