ath11k: fix error code in ath11k_qmi_assign_target_mem_chunk()

The "ret" vairable is not set at this point.  It could be uninitialized
or zero.  The correct thing to return is -ENODEV.

Fixes: 6ac04bdc ("ath11k: Use reserved host DDR addresses from DT for PCI devices")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220111071445.GA11243@kili

drivers/net/wireless/ath/ath11k/qmi.c

@@ -1932,7 +1932,7 @@ static int ath11k_qmi_assign_target_mem_chunk(struct ath11k_base *ab)
 			if (!hremote_node) {
 				ath11k_dbg(ab, ATH11K_DBG_QMI,
 					   "qmi fail to get hremote_node\n");
-				return ret;
+				return -ENODEV;
 			}
 
 			ret = of_address_to_resource(hremote_node, 0, &res);