Increase rescheduling retries to 10

Increase rescheduling retries for agents
in order to make it work even with very
slow or busy environments

Change-Id: I85c84b7c2395e1463b6b4c291ceab5041519d4b7
Closes-bug: #1395799
Merge "Increase rescheduling retries to 10" into stable/5.1