Update with :unique_data

Author: jvazquez-r7

modules/auxiliary/scanner/sap/sap_service_discovery.rb

@@ -231,7 +231,8 @@ def run_host(ip)
               :host => "#{ip}",
               :port => "#{port}",
               :type => 'SAP',
-              :data => "#{service}"
+              :data => "#{service}",
+              :update => :unique_data
             )
             r << [ip,port,"open", service]
             rescue ::Rex::ConnectionRefused