[PATCH] docs: dt: fix a broken reference for a file converted to json

[Mauro Carvalho Chehab]

Changeset 32ced09d7903 ("dt-bindings: serial: Convert slave-device bindings to json-schema")
moved a binding to json and updated the links. Yet, one link
was forgotten.

Update this one too.

Fixes: 32ced09d7903 ("dt-bindings: serial: Convert slave-device bindings to json-schema")
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx>
---
 Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt b/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt
index beca6466d59a..d2202791c1d4 100644
--- a/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt
+++ b/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt
@@ -29,7 +29,7 @@ Required properties for compatible string qcom,wcn399x-bt:
 
 Optional properties for compatible string qcom,wcn399x-bt:
 
- - max-speed: see Documentation/devicetree/bindings/serial/slave-device.txt
+ - max-speed: see Documentation/devicetree/bindings/serial/serial.yaml
  - firmware-name: specify the name of nvm firmware to load
  - clocks: clock provided to the controller
 
-- 
2.25.1