Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/scripts/gdb/linux/cpus.py b/scripts/gdb/linux/cpus.py
index ca11e8d..008e62f 100644
--- a/scripts/gdb/linux/cpus.py
+++ b/scripts/gdb/linux/cpus.py
@@ -135,6 +135,7 @@
         gdb.write("Online CPUs   : {}\n".format(list(each_online_cpu())))
         gdb.write("Active CPUs   : {}\n".format(list(each_active_cpu())))
 
+
 LxCpus()