mt76: mt7921: reinit wpdma during drv_own if necessary

Check dummy reg to reinitialized WPDMA during driver_own operation

Signed-off-by: Lorenzo Bianconi <[e-mail]>
Signed-off-by: Felix Fietkau <[e-mail]>

drivers/net/wireless/mediatek/mt76/mt7921/mcu.c

···
 		err = -EIO;
 		goto out;
 	}
+
+	mt7921_wpdma_reinit_cond(dev);
 	clear_bit(MT76_STATE_PM, &mphy->state);
 
 	pm->stats.last_wake_event = jiffies;