qcacmn: Add wmi service for per vdev chain support

Add and populate the wmi service for per
vdev nss chain support feature.

Change-Id: I30a0921186826892f87433287ab206b168cee964
CRs-Fixed: 2347627

wmi_unified_param.h

@@ -5218,6 +5218,7 @@ typedef enum {
 	wmi_service_infra_mbssid,
 	wmi_service_esp_support,
 	wmi_service_obss_spatial_reuse,
+	wmi_service_per_vdev_chain_support,
 	wmi_services_max,
 } wmi_conv_service_ids;
 #define WMI_SERVICE_UNAVAILABLE 0xFFFF