wifi: ath12k: Add missing unwind goto in ath12k_pci_probe()

Smatch Warns:
	drivers/net/wireless/ath/ath12k/pci.c:1198 ath12k_pci_probe()
	warn: missing unwind goto?

Store the error value in ret and use correct label with a goto.

Only Compile tested, found with Smatch.

Fixes: d8899132 ("wifi: ath12k: driver for Qualcomm Wi-Fi 7 devices")
Reported-by: Dan Carpenter <error27@gmail.com>
Link: https://lore.kernel.org/all/Y+426q6cfkEdb5Bv@kili/Suggested-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230307104706.240119-1-harshit.m.mogalapalli@oracle.com

drivers/net/wireless/ath/ath12k/pci.c

@@ -1223,7 +1223,8 @@ static int ath12k_pci_probe(struct pci_dev *pdev,
 			dev_err(&pdev->dev,
 				"Unknown hardware version found for QCN9274: 0x%x\n",
 				soc_hw_version_major);
-			return -EOPNOTSUPP;
+			ret = -EOPNOTSUPP;
+			goto err_pci_free_region;
 		}
 		break;
 	case WCN7850_DEVICE_ID: