git: 70f682385515 - stable/15 - sound: Update mixer.c LICENSE header

The branch stable/15 has been updated by christos:

URL: https://cgit.FreeBSD.org/src/commit/?id=70f682385515d4b50881c2d35dbf3d41ec595b75

commit 70f682385515d4b50881c2d35dbf3d41ec595b75
Author:     Christos Margiolis <christos@FreeBSD.org>
AuthorDate: 2026-04-17 17:33:00 +0000
Commit:     Christos Margiolis <christos@FreeBSD.org>
CommitDate: 2026-06-03 08:23:03 +0000

    sound: Update mixer.c LICENSE header
    
    Sponsored by:   The FreeBSD Foundation
    MFC after:      1 week
    Pull Request:   https://ron-dev.freebsd.org/FreeBSD/src/pulls/18
    
    (cherry picked from commit 773bbfc57328f0a7947f2ad9a30de6a45ccce758)
---
 sys/dev/sound/pcm/mixer.c | 4 ++++
 sys/dev/sound/pcm/mixer.h | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/sys/dev/sound/pcm/mixer.c b/sys/dev/sound/pcm/mixer.c
index 8d96486c862b..3ddee24417cc 100644
--- a/sys/dev/sound/pcm/mixer.c
+++ b/sys/dev/sound/pcm/mixer.c
@@ -5,6 +5,10 @@
  * Portions Copyright (c) Ryan Beasley <ryan.beasley@gmail.com> - GSoC 2006
  * Copyright (c) 1999 Cameron Grant <cg@FreeBSD.org>
  * All rights reserved.
+ * Copyright (c) 2026 The FreeBSD Foundation
+ *
+ * Portions of this software were developed by Christos Margiolis
+ * <christos@FreeBSD.org> under sponsorship from the FreeBSD Foundation.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
diff --git a/sys/dev/sound/pcm/mixer.h b/sys/dev/sound/pcm/mixer.h
index 34f0514c6271..6f764307cfc8 100644
--- a/sys/dev/sound/pcm/mixer.h
+++ b/sys/dev/sound/pcm/mixer.h
@@ -4,6 +4,10 @@
  * Copyright (c) 2005-2009 Ariff Abdullah <ariff@FreeBSD.org>
  * Copyright (c) 1999 Cameron Grant <cg@FreeBSD.org>
  * All rights reserved.
+ * Copyright (c) 2026 The FreeBSD Foundation
+ *
+ * Portions of this software were developed by Christos Margiolis
+ * <christos@FreeBSD.org> under sponsorship from the FreeBSD Foundation.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions