dt-bindings: phy: mxs-usb-phy: add imx8ulp and imx8qm compatible

The imx8ulp and imx8qm are compatible with imx8dxl. This will add such
compatible.

Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230613083445.1129137-2-xu.yang_2@nxp.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

Author: Xu Yang

Documentation/devicetree/bindings/phy/fsl,mxs-usbphy.yaml

@@ -29,7 +29,10 @@ properties:
           - const: fsl,imx6ul-usbphy
           - const: fsl,imx23-usbphy
       - items:
-          - const: fsl,imx8dxl-usbphy
+          - enum:
+              - fsl,imx8dxl-usbphy
+              - fsl,imx8qm-usbphy
+              - fsl,imx8ulp-usbphy
           - const: fsl,imx7ulp-usbphy
 
   reg: