mt76: mt7615: fix aid configuration in mt7615_mcu_wtbl_generic_tlv

If the vif is running in station mode the aid will be passed by mac80211
using bss_conf.aid. Fix aid configuration in mt7615_mcu_wtbl_generic_tlv

Fixes: 04b8e659

 ("mt76: add mac80211 driver for MT7615 PCIe-based chipsets")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>