dt-bindings: net: broadcom-bluetooth: Add BCM43540 compatible string

The BCM43540 is a 802.11 a/b/g/n/ac WiFi + Bluetooth 4.1 chip from
Broadcom. This is present in Azurewave AW-CM195NF WiFi+BT module.

Signed-off-by: Abhishek Pandit-Subedi <[email protected]>
Signed-off-by: Marcel Holtmann <[email protected]>

Author: apandit

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

@@ -14,6 +14,7 @@ Required properties:
    * "brcm,bcm4330-bt"
    * "brcm,bcm43438-bt"
    * "brcm,bcm4345c5"
+   * "brcm,bcm43540-bt"
 
 Optional properties: