wifi: mt76: mt7915: fix bogus Tx/Rx airtime duration values

Do not report measurements if the airtime counter was cleared since the
last update (possibly by firmware)

Signed-off-by: Henry Yen <henry.yen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Henry Yen 2024-02-22 11:24:46 +08:00 • committed by Felix Fietkau
commit 296931843a