[PATCH v2 4/4] dt-bindings: usb: use preferred license tag

[Chunfeng Yun]

This is used to fix the checkpach.pl WARNING:SPDX_LICENSE_TAG

See bindings/submitting-patches.rst:
"DT binding files should be dual licensed. The preferred license tag is
 (GPL-2.0-only OR BSD-2-Clause)."

Signed-off-by: Chunfeng Yun <chunfeng.yun@xxxxxxxxxxxx>
---
v2: new patch
---
 Documentation/devicetree/bindings/usb/usb-hcd.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/usb/usb-hcd.yaml b/Documentation/devicetree/bindings/usb/usb-hcd.yaml
index 42b295afdf32..11b9b9ee2b54 100644
--- a/Documentation/devicetree/bindings/usb/usb-hcd.yaml
+++ b/Documentation/devicetree/bindings/usb/usb-hcd.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
 %YAML 1.2
 ---
 $id: http://devicetree.org/schemas/usb/usb-hcd.yaml#
-- 
2.18.0