mt76: fix return value of mt76x02_wait_for_mac

We need to return bool value in mt76x02_wait_for_mac.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes: 2735a6dd ("mt76: unify wait_for_mac")
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt76x02_mac.h

@@ -165,7 +165,7 @@ static inline bool mt76x02_wait_for_mac(struct mt76_dev *dev)
 
 	for (i = 0; i < 500; i++) {
 		if (test_bit(MT76_REMOVED, &dev->state))
-			return -EIO;
+			return false;
 
 		switch (dev->bus->rr(dev, MAC_CSR0)) {
 		case 0: