add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/arch/arc/Kbuild
..
..
@@ -1,2 +1,3 @@
1
+# SPDX-License-Identifier: GPL-2.0
1
2
 obj-y += kernel/
2
3
 obj-y += mm/