wifi: mt76: mt7915: set sku initial value to zero

Set sku initial value before mcu starts to prevent mcu from getting an
invalid value.
Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt7915/soc.c

@@ -883,6 +883,8 @@ static int mt7986_wmac_wm_enable(struct mt7915_dev *dev, bool enable)
 {
 	u32 cur;
 
+	mt76_wr(dev, MT_CONNINFRA_SKU_DEC_ADDR, 0);
+
 	mt76_rmw_field(dev, MT7986_TOP_WM_RESET,
 		       MT7986_TOP_WM_RESET_MASK, enable);
 	if (!enable)