Automation coverage for Bug - 1366753.

1. Bug - 1366753 :: CIDR as source in policy rule was failing.
2. Now that the bug is fixed this test automates the check for
configuring CIDR as a source in a policy rule.
3. This is being made as a sanity test to be run on every build.

Change-Id: I237c5a2da1d760e84de107e87b6ac84cbf6578cf
Merge "Automation coverage for Bug - 1366753."