[][MAC80211][misc][Fix mt7986 mac80211 git01 build fail]

[Description]
Fix external build fail. Sync build script
Rework mt76 patches for 'git am'

[Release-log]
N/A

Change-Id: I5a67cefd3054183922fb3f5043b4385f1155b01b
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/6937805
53 files changed