[PATCH] hw/usb/canokey: change license to GPLv2+

["Hongren (Zenithal) Zheng" <i@zenithal.me>]

Apache license is considered by some to be not compatible
with GPLv2+. Since QEMU as combined work is GPLv2-only,
these two files should be made compatible.

Reported-by: "Daniel P. Berrangé" <berrange@redhat.com>
Link: https://lore.kernel.org/qemu-devel/ZEpKXncC%2Fe6FKRe9@redhat.com/
Signed-off-by: Hongren (Zenithal) Zheng <i@zenithal.me>
---
 hw/usb/canokey.c | 2 +-
 hw/usb/canokey.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/hw/usb/canokey.c b/hw/usb/canokey.c
index bbc5da07b5..b306eeb20e 100644
--- a/hw/usb/canokey.c
+++ b/hw/usb/canokey.c
@@ -4,7 +4,7 @@
  * Copyright (c) 2021-2022 Canokeys.org <contact@canokeys.org>
  * Written by Hongren (Zenithal) Zheng <i@zenithal.me>
  *
- * This code is licensed under the Apache-2.0.
+ * This code is licensed under the GPL v2 or later.
  */
 
 #include "qemu/osdep.h"
diff --git a/hw/usb/canokey.h b/hw/usb/canokey.h
index 24cf304203..e528889d33 100644
--- a/hw/usb/canokey.h
+++ b/hw/usb/canokey.h
@@ -4,7 +4,7 @@
  * Copyright (c) 2021-2022 Canokeys.org <contact@canokeys.org>
  * Written by Hongren (Zenithal) Zheng <i@zenithal.me>
  *
- * This code is licensed under the Apache-2.0.
+ * This code is licensed under the GPL v2 or later.
  */
 
 #ifndef CANOKEY_H
-- 
2.37.2