qcacmn: Add support to fetch BIG DATA fw cap

Add support to fetch fw capbality to handle
BIG data feature.

Change-Id: I3672230a26e2502164e991916404a5f6450f218e
CRs-Fixed: 2937221

wmi/inc/wmi_unified_param.h

@@ -5197,6 +5197,9 @@ typedef enum {
 #ifdef FEATURE_WLAN_TDLS
 	wmi_service_tdls_ax_support,
 #endif
+#endif
+#ifdef WLAN_FEATURE_BIG_DATA_STATS
+	wmi_service_big_data_support,
 #endif
 	wmi_services_max,
 } wmi_conv_service_ids;