[][kernel][common][eth][Add reset callback function to mii_bus for bus level reset]

[Description]
Add reset callback function to mii_bus for bus level reset.

If without this patch, kernel is not able to wait PHY device ready before reading PHY ID.

[Release-log]
N/A

Change-Id: Idcf3b77cac7db3d1bdfc1c0e9eedbafbe6429615
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/6375779
1 file changed