Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/tools/gpio/Build b/tools/gpio/Build
index 620c193..4141f35 100644
--- a/tools/gpio/Build
+++ b/tools/gpio/Build
@@ -1,3 +1,4 @@
+gpio-utils-y += gpio-utils.o
 lsgpio-y += lsgpio.o gpio-utils.o
 gpio-hammer-y += gpio-hammer.o gpio-utils.o
 gpio-event-mon-y += gpio-event-mon.o gpio-utils.o