wifi: ath10k: Make QMI message rules const

Commit ff6d3658 ("soc: qcom: qmi: use const for struct
qmi_elem_info") allows QMI message encoding/decoding rules
to be const, so do that for ath10k.

Compile tested only.
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220915002612.13394-1-quic_jjohnson@quicinc.com

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

@@ -618,7 +618,7 @@ static int ath10k_qmi_host_cap_send_sync(struct ath10k_qmi *qmi)
 {
 	struct wlfw_host_cap_resp_msg_v01 resp = {};
 	struct wlfw_host_cap_req_msg_v01 req = {};
-	struct qmi_elem_info *req_ei;
+	const struct qmi_elem_info *req_ei;
 	struct ath10k *ar = qmi->ar;
 	struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
 	struct qmi_txn txn;