docs: Use sphinx-apidoc library for autodoc generation

This package is used for automatic generation of autodoc
documentation which offers the following advantages:

* the Patrole framework for all modules is always built
  and kept up to date
* it is isolated in its own page layout
* it can still be linked to by other documentation pages
  easily

Change-Id: I101557efe47293f88ee65b99275fdc8424c02e35
diff --git a/doc/source/framework/rbac_validation.rst b/doc/source/framework/rbac_validation.rst
index 6cd1534..460c08c 100644
--- a/doc/source/framework/rbac_validation.rst
+++ b/doc/source/framework/rbac_validation.rst
@@ -14,7 +14,4 @@
 Implementation
 --------------
 
-.. automodule:: patrole_tempest_plugin.rbac_rule_validation
-   :members:
-   :private-members:
-   :special-members:
+:py:mod:`RBAC Rule Validation Module <patrole_tempest_plugin.rbac_rule_validation>`