dt-bindings: phy: brcmstb-usb-phy: Add support for bcm74110

bcm74110 brcmstb usb phy adds further power savings during suspend
states.

Signed-off-by: Justin Chen <[e-mail]>
Reviewed-by: Florian Fainelli <[e-mail]>
Acked-by: Krzysztof Kozlowski <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Vinod Koul <[e-mail]>

Documentation/devicetree/bindings/phy/brcm,brcmstb-usb-phy.yaml

···
       - brcm,bcm4908-usb-phy
       - brcm,bcm7211-usb-phy
       - brcm,bcm7216-usb-phy
+      - brcm,bcm74110-usb-phy
       - brcm,brcmstb-usb-phy
 
   reg:
···
       properties:
         compatible:
           contains:
-            const: brcm,bcm7216-usb-phy
+            enum:
+              - brcm,bcm7216-usb-phy
+              - brcm,bcm74110-usb-phy
     then:
       properties:
         reg: