qcacmn: Add WMI APIs to send and extract offchan data tx

Add API to send offchan data TX command and extract API to get offchan
data tx completion params.

Change-Id: I1e04d50810e43cec2c700476581e518b394db582

wmi_unified_priv.h

@@ -293,6 +293,9 @@ QDF_STATUS (*send_scan_chan_list_cmd)(wmi_unified_t wmi_handle,
 QDF_STATUS (*send_mgmt_cmd)(wmi_unified_t wmi_handle,
 				struct wmi_mgmt_params *param);
 
+QDF_STATUS (*send_offchan_data_tx_cmd)(wmi_unified_t wmi_handle,
+				struct wmi_offchan_data_tx_params *param);
+
 QDF_STATUS (*send_modem_power_state_cmd)(wmi_unified_t wmi_handle,
 		uint32_t param_value);
 
@@ -1098,6 +1101,10 @@ QDF_STATUS (*extract_pdev_generic_buffer_ev_param)(wmi_unified_t wmi_handle,
 QDF_STATUS (*extract_mgmt_tx_compl_param)(wmi_unified_t wmi_handle,
 		void *evt_buf, wmi_host_mgmt_tx_compl_event *param);
 
+QDF_STATUS (*extract_offchan_data_tx_compl_param)(wmi_unified_t wmi_handle,
+		void *evt_buf,
+		struct wmi_host_offchan_data_tx_compl_event *param);
+
 QDF_STATUS (*extract_pdev_csa_switch_count_status)(wmi_unified_t wmi_handle,
 		void *evt_buf, struct pdev_csa_switch_count_status *param);