Correct return type of climate entity feature

[PeteRager]

Climate supported features is returning an integer zero when the zone is disabled; it should be returning a ClimateEntityFeature type instead.

Error adding entity None for domain climate with platform lennoxs30
Traceback (most recent call last):
File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 825, in _async_add_entity
capabilities=entity.capability_attributes,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/components/climate/init.py", line 386, in capability_attributes
if ClimateEntityFeature.TARGET_HUMIDITY in supported_features: