[rdkb][common][bsp][Refactor and sync kernel from openwrt]

[Description]
0345edb [kernel][common][eth][Add 1000basex support and refactor to upstream style for the SGMII]
934f05b [kernel][mt7988][eth][i2.5Gphy: Add 20230412 version firmware]

[Release-log]

Change-Id: I9967bfcab7b20bb6d6fbd6b8f58578cdf05fb30d
5 files changed