[][MAC80211][mt76][Add eeprom comparison before writting efuse]

[Description]
Add eeprom comparison between driver-modified one and the one read from FW
before writting back to efuse.
This avoid wasting efuse's free block num to write the same value.
Note that this commit is being re-submitted because the previous
refactoring commit missed this commit.

[Release-log]
N/A

Change-Id: I4551fe82b200d97ef395d03886a1e098835906cf
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/7339414
2 files changed