dt-bindings: net: bluetooth: Minor fix in broadcom-bluetooth

The example for brcm,bt-pcm-int-params should be a bytestring and all
values need to be two hex characters.
Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

Documentation/devicetree/bindings/net/broadcom-bluetooth.txt

@@ -47,6 +47,6 @@ Example:
        bluetooth {
                compatible = "brcm,bcm43438-bt";
                max-speed = <921600>;
-               brcm,bt-pcm-int-params = [1 2 0 1 1];
+               brcm,bt-pcm-int-params = [01 02 00 01 01];
        };
 };