Fix flake8 E302 errors.

awx/main/fields.py

@@ -40,6 +40,7 @@ class JSONField(upstream_JSONField):
 # Based on AutoOneToOneField from django-annoying:
 # https://bitbucket.org/offline/django-annoying/src/a0de8b294db3/annoying/fields.py
 
+
 class AutoSingleRelatedObjectDescriptor(SingleRelatedObjectDescriptor):
     """Descriptor for access to the object from its related class."""
 
@@ -56,6 +57,7 @@ class AutoSingleRelatedObjectDescriptor(SingleRelatedObjectDescriptor):
             obj.save()
             return obj
 
+
 class AutoOneToOneField(models.OneToOneField):
     """OneToOneField that creates related object if it doesn't exist."""