qcacmn: Add support to offload igmp feature to fw

Send command with required params to offload igmp
feature to fw.

Change-Id: I8b34b3f465c85db6b6cccd5fba439bee1c5640f4
CRs-Fixed: 2908041

wmi/inc/wmi_unified_priv.h

@@ -868,6 +868,10 @@ QDF_STATUS (*send_gtk_offload_cmd)(wmi_unified_t wmi_handle, uint8_t vdev_id,
 					   struct pmo_gtk_req *params,
 					   bool enable_offload,
 					   uint32_t gtk_offload_opcode);
+#ifdef WLAN_FEATURE_IGMP_OFFLOAD
+QDF_STATUS (*send_igmp_offload_cmd)(wmi_unified_t wmi_handle,
+				    struct pmo_igmp_offload_req *pmo_igmp_req);
+#endif
 
 QDF_STATUS (*send_process_gtk_offload_getinfo_cmd)(wmi_unified_t wmi_handle,
 				uint8_t vdev_id,