dt-bindings: usb: mtk-xhci: add compatible for mt2701 and mt7623

Add two compatible for mt2701 and mt7623;
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/20210201070016.41721-7-chunfeng.yun@mediatek.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.yaml

@@ -23,8 +23,10 @@ properties:
   compatible:
     items:
       - enum:
+          - mediatek,mt2701-xhci
           - mediatek,mt2712-xhci
           - mediatek,mt7622-xhci
+          - mediatek,mt7623-xhci
           - mediatek,mt7629-xhci
           - mediatek,mt8173-xhci
           - mediatek,mt8183-xhci