add audio

hc

2023-12-11 1f93a7dfd1f8d5ff7a5c53246c7534fe2332d6f4

 kernel/tools/build/Makefile.include
..
..
@@ -1,3 +1,4 @@
1
+# SPDX-License-Identifier: GPL-2.0-only
1
2
 build := -f $(srctree)/tools/build/Makefile.build dir=. obj
2
3
 
3
4
 fixdep: