wifi: mt76: mt7996: fix rx filter setting for bfee functionality

Fix rx filter setting to prevent dropping NDPA frames. Without this
change, bfee functionality may behave abnormally.

Fixes: 98686cd2 ("wifi: mt76: mt7996: add driver for MediaTek Wi-Fi 7 (802.11be) devices")
Link: https://patch.msgid.link/20241230194202.95065-5-nbd@nbd.name


Signed-off-by: Felix Fietkau <nbd@nbd.name>