add gmac0 read mac form eeprom,pcie30x1

hc

2023-11-22 d0a428a6556ea5a006e22e28b0b1cd037885fe20

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# Locally computed:
sha256  07267a3951038ee2e02d26cc41bf8e275668c38f751240d3e78dc979182e7376  libjson_7.6.1.zip