MT_BEACON_TIME_CFG_SYNC_MODE needs to be set for AP mode, according to the
documentation. For other modes it should be irrelevant in this case.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
        }
 
        mt76_clear(dev, MT_BEACON_TIME_CFG, (MT_BEACON_TIME_CFG_TIMER_EN |
-                                            MT_BEACON_TIME_CFG_SYNC_MODE |
                                             MT_BEACON_TIME_CFG_TBTT_EN |
                                             MT_BEACON_TIME_CFG_BEACON_TX));
+       mt76_set(dev, MT_BEACON_TIME_CFG, MT_BEACON_TIME_CFG_SYNC_MODE);
        mt76_wr(dev, MT_BCN_BYPASS_MASK, 0xffff);
 
        for (i = 0; i < 8; i++)