[][MAC80211][misc][mt76 Makefile]

[Description]
Fix release build fail due to incorrect mt76's Makefile
Add missing kernel config

[Release-log]
N/A

Change-Id: I2aef4d10d5f91660a81f098f7efc2a3626a09a01
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/7686363
2 files changed