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

[Description]
Refactor and sync kernel from openwrt
0748a18 [kernel][mt798x][config][Add default configuration for CONFIG_AIROHA_EN8811H_PHY]
[Release-log]

Change-Id: I0483338d34c72eb30d538e4fa2874222e52e6a47
2 files changed