Fix Agent Restarting Issue with Changing is to ==
Fix Agent Restarting Issue with Changing is to ==

== is for value equality
"is" is for reference equality
During testing in padawan, agent was always restarting
even there were no changes and turned out misusing "is"
was the problem.

Change-Id: Ibb63c6675974259981bb92c3aa17945b25e631c3

sapcc/monasca-agent,sapcc/monasca-agent,sapcc/monasca-agent