[][Fix mtk eth driver compile error]

[Description]
Fix mtk eth driver compile error

[Release-log]
N/A

Change-Id: I7203cfbd0bb5cc6fada920cf1dbf4756d3d10f63
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/5112807
1 file changed