wifi: mt76: mt7915: improve hardware restart reliability

[ Upstream commit 328e35c7 ]

- use reconfig_complete to restart mac_work / queues
- reset full wtbl after firmware init
- clear wcid and vif mask to avoid leak
- fix sta poll list corruption

Link: https://patch.msgid.link/20240827093011.18621-19-nbd@nbd.name


Signed-off-by: Felix Fietkau <nbd@nbd.name>
Stable-dep-of: cd043bbb ("wifi: mt76: mt7915: fix omac index assignment after hardware reset")
Signed-off-by: Sasha Levin <sashal@kernel.org>