Land rapid7#7561, report correct credential status as successful

Author: wchen-r7

modules/exploits/linux/http/trendmicro_sps_exec.rb

@@ -188,7 +188,7 @@ def report_cred(opts)
 
     login_data = {
         core: create_credential(credential_data),
-        status: Metasploit::Model::Login::Status::UNTRIED,
+        status: Metasploit::Model::Login::Status::SUCCESSFUL,
         proof: opts[:proof]
     }.merge(service_data)