ath10k: fix IRAM banks number for QCA9377

QCA9377 firmware shall alloc 4 IRAM banks
Signed-off-by: NBartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

drivers/net/wireless/ath/ath10k/pci.c

@@ -1973,7 +1973,7 @@ static int ath10k_pci_get_num_banks(struct ath10k *ar)
 		}
 		break;
 	case QCA9377_1_0_DEVICE_ID:
-		return 2;
+		return 4;
 	}
 
 	ath10k_warn(ar, "unknown number of banks, assuming 1\n");