add dts config

hc

2023-12-06 08f87f769b595151be1afeff53e144f543faa614

 kernel/tools/testing/selftests/size/Makefile
..
..
@@ -1,3 +1,4 @@
1
+# SPDX-License-Identifier: GPL-2.0-only
1
2
 CFLAGS := -static -ffreestanding -nostartfiles -s
2
3
 
3
4
 TEST_GEN_PROGS := get_size