qcacmn: Add changes to process LATENCY_LEVEL_EVENT

If the multi-client Low latency feature enabled in driver,
FW sends WMI_VDEV_LATENCY_LEVEL_EVENTID to report latency
level honored by FW as a response to a request
command WMI_WLM_CONFIG_CMDID.

Change-Id: I06f7bbc2365e8b71e0ae6386ef42ef4238dafd35
CRs-Fixed: 3180940

wmi/inc/wmi_unified_param.h

@@ -752,6 +752,18 @@ struct oem_data {
 };
 #endif
 
+#ifdef MULTI_CLIENT_LL_SUPPORT
+/**
+ * struct latency_level_data - latency data received in the event from the FW
+ * @vdev_id: The latency level for specified vdev_id
+ * @latency_level: latency level honoured by FW
+ */
+struct latency_level_data {
+	uint8_t vdev_id;
+	uint32_t latency_level;
+};
+#endif
+
 /**
  * enum nss_chains_band_info - Band info for dynamic nss, chains change feature
  * @NSS_CHAINS_BAND_2GHZ: 2.4Ghz band
@@ -4944,6 +4956,9 @@ typedef enum {
 	wmi_extract_pktlog_decode_info_eventid,
 #ifdef QCA_RSSI_DB2DBM
 	wmi_pdev_rssi_dbm_conversion_params_info_eventid,
+#endif
+#ifdef MULTI_CLIENT_LL_SUPPORT
+	wmi_vdev_latency_event_id,
 #endif
 	wmi_events_max,
 } wmi_conv_event_id;