Improve Patrole config options

- Renames "rbac_flag" to "enable_rbac"
- Creates "strict_policy_check" option
- Resolves bug where policy not in policy.json
  would pass RBAC test, leading to false test
  results

Change-Id: I76429e6cb0ed4cad154a07b7a873fd23209da674
Closes-Bug: #1673626
diff --git a/doc/source/installation.rst b/doc/source/installation.rst
index 00cc57b..96f1c3f 100644
--- a/doc/source/installation.rst
+++ b/doc/source/installation.rst
@@ -48,9 +48,14 @@
 #. [rbac] section updates ::
 
        # The role that you want the RBAC tests to use for RBAC testing
-       # This needs to be edited to run the test as a different role. 
+       # This needs to be edited to run the test as a different role.
        rbac_test_role = _member_
 
        # Enables RBAC Tempest tests if set to True. Otherwise, they are
        # skipped.
-       rbac_flag = True
+       enable_rbac = True
+
+       # If set to true, tests throw a RbacParsingException for policies
+       # not found in the policy.json. Otherwise, they throw a
+       # skipException.
+       strict_policy_check = False