Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/scripts/atomic/fallbacks/release b/scripts/atomic/fallbacks/release
new file mode 100755
index 0000000..3f628a3
--- /dev/null
+++ b/scripts/atomic/fallbacks/release
@@ -0,0 +1,8 @@
+cat <<EOF
+static inline ${ret}
+${atomic}_${pfx}${name}${sfx}_release(${params})
+{
+	__atomic_release_fence();
+	${retstmt}${atomic}_${pfx}${name}${sfx}_relaxed(${args});
+}
+EOF