default or selected kernelversion does not have config value CONFIG_AIR_EN8811H_PHY.
Result is shown for kernelversion 6.9.8

Airoha EN8811H 2.5 Gigabit PHY

modulename: air_en8811h.ko

configname: CONFIG_AIR_EN8811H_PHY

Linux Kernel Configuration
└─>Device Drivers
└─>Network device support
└─>PHY Device support and infrastructure
└─>Airoha EN8811H 2.5 Gigabit PHY
In linux kernel since version 4.19.318 (release Date: 2024-07-18)  
Currently supports the Airoha EN8811H PHY.

source code:
drivers/net/phy/air_en8811h.c