[][Add Intel GPY211 2.5G PHY support with rate adaption enabled]

[Description]
Add Intel GPY211 2.5G PHY support with rate adaption enabled.

[Release-log]
N/A

Change-Id: I8f6dddbb8dc92c6a20ea554e365c1c59a7ada4db
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/4565996
2 files changed