Refresh inventory collection requirements (#4296)

* Refresh inventory collection requirements

Fix bug specific to Docker development where the right folder of
  install was not specified in the setting

Add initial rhv/ovirt version for consistency

* Update unit test to ovirt name change

awx/main/models/inventory.py

@@ -2491,8 +2491,9 @@ class rhv(PluginFileInjector):
     """
     plugin_name = 'ovirt'
     base_injector = 'template'
+    initial_version = '2.9'
     namespace = 'ovirt'
-    collection = 'ovirt_collection'
+    collection = 'ovirt'
 
     @property
     def script_name(self):

awx/main/tests/data/inventory/plugins/rhv/files/ovirt.yml

@@ -1 +1 @@
-plugin: ovirt.ovirt_collection.ovirt
+plugin: ovirt.ovirt.ovirt

awx/settings/development.py

@@ -148,6 +148,9 @@ for setting in dir(this_module):
 include(optional('/etc/tower/settings.py'), scope=locals())
 include(optional('/etc/tower/conf.d/*.py'), scope=locals())
 
+# Installed differently in Dockerfile compared to production versions
+INVENTORY_COLLECTIONS_ROOT = '/vendor/inventory_collections'
+
 BASE_VENV_PATH = "/venv/"
 ANSIBLE_VENV_PATH = os.path.join(BASE_VENV_PATH, "ansible")
 AWX_VENV_PATH = os.path.join(BASE_VENV_PATH, "awx")