cnss2: Release DMS QMI handle during dms_del_server

DMS server runs in Modem. When Modem SSR happens dms_del_server
gets called. Even after DMS service disconnected, qmi_txn_wait is
still waiting. Release DMS QMI handle in dms_del_server to cancel
pending transaction.

Change-Id: I06ccfba34269dc51288300aa5fa0326842a09e32
CRs-Fixed: 3288808

cnss2/qmi.h

@@ -91,6 +91,7 @@ int cnss_wlfw_cal_report_req_send_sync(struct cnss_plat_data *plat_priv,
 int cnss_send_subsys_restart_level_msg(struct cnss_plat_data *plat_priv);
 int cnss_wlfw_ini_file_send_sync(struct cnss_plat_data *plat_priv,
 				 enum wlfw_ini_file_type_v01 file_type);
+void cnss_cancel_dms_work(void);
 #else
 #define QMI_WLFW_TIMEOUT_MS		10000
 
@@ -318,6 +319,10 @@ int cnss_wlfw_ini_file_send_sync(struct cnss_plat_data *plat_priv,
 {
 	return 0;
 }
+
+static void cnss_cancel_dms_work(void)
+{
+}
 #endif /* CONFIG_CNSS2_QMI */
 
 #ifdef CONFIG_CNSS2_DEBUG