[cloud] If inventory file isn't able to be parsed by aws_ec2, raise an AnsibleParserError (#36387) (#36459)

* If inventory file isn't able to be parsed by aws_ec2, return an empty dict instead of None

* Raise an AnsibleParserError instead

* remove extra lines

* aws_ec2 inventory plugin - fix path matching logic

lib/ansible/plugins/inventory/aws_ec2.py

@@ -451,10 +451,9 @@ class InventoryModule(BaseInventoryPlugin, Constructable, Cacheable):
             :return the contents of the config file
         '''
         if super(InventoryModule, self).verify_file(path):
-            if path.endswith('.aws_ec2.yml' or '.aws_ec2.yaml'):
+            if path.endswith('.aws_ec2.yml') or path.endswith('.aws_ec2.yaml'):
                 return self._read_config_data(path)
-        else:
+        raise AnsibleParserError("Not a ec2 inventory plugin configuration file")
-            raise AnsibleParserError("Not a ec2 inventory plugin configuration file")
 
     def _get_query_options(self, config_data):
         '''