dt-bindings: clock: bcm63xx: add 6318 gated clock bindings

Add BCM6318 to the binding documentation for the gated clock controllers found
on BCM63xx SoCs.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20200610140858.207329-2-noltari@gmail.comAcked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

Documentation/devicetree/bindings/clock/brcm,bcm63xx-clocks.txt

@@ -3,6 +3,8 @@ Gated Clock Controller Bindings for MIPS based BCM63XX SoCs
 Required properties:
 - compatible: must be one of:
 	 "brcm,bcm3368-clocks"
+	 "brcm,bcm6318-clocks"
+	 "brcm,bcm6318-ubus-clocks"
 	 "brcm,bcm6328-clocks"
 	 "brcm,bcm6358-clocks"
 	 "brcm,bcm6362-clocks"