add stmac read mac form eeprom

hc

2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

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# Locally computed:
sha256 d846066e27c3072565990745d030357aa0c278f96b7d1d4f59023347c1db8824  ser2net-3.4.tar.gz