mt76x0: pci: fix set external PA I/O current

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/wireless/mediatek/mt76/mt76x0/pci.c: In function 'mt76x0e_register_device':
drivers/net/wireless/mediatek/mt76/mt76x0/pci.c:107:8: warning:
 variable 'data' set but not used [-Wunused-but-set-variable]

It seems correct value to write is 'data'

Fixes: 2b2cb40b ("mt76x0: pci: add hw initialization at bootstrap")
Acked-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt76x0/pci.c

@@ -115,12 +115,12 @@ static int mt76x0e_register_device(struct mt76x02_dev *dev)
 		if (val & MT_EE_NIC_CONF_0_PA_IO_CURRENT) {
 			u32 data;
 
-			/* set external external PA I/O
+			/* set external PA I/O
 			 * current to 16mA
 			 */
 			data = mt76_rr(dev, 0x11c);
-			val |= 0xc03;
-			mt76_wr(dev, 0x11c, val);
+			data |= 0xc03;
+			mt76_wr(dev, 0x11c, data);
 		}
 	}