add wifi 4g uart0,3,4,5,7,9

hc

2023-02-15 e6ab316063efe269dbc459a0a7939fb55abd8c44

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Beckhoff Automation Platforms Device Tree Bindings
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CX9020 Embedded PC
Required root node properties:
    - compatible = "bhf,cx9020", "fsl,imx53";