[][MAC80211][mt76][Add efuse free block dump in debugfs cmd]

[Description]
Add efuse free block dump in debugfs cmd

[Release-log]
N/A

Change-Id: I48ed57a32db7461641acbe39a4ff6a6762a8dc1d
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/7378843
1 file changed