Fixed case in HVAC signal
Fixed case in HVAC signal

The signal IsAirConditioningActive was originally written lowercase.
Changed to uppercase as submitted through
https://github.com/GENIVI/vehicle_signal_specification/issues/16.

Signed-off-by: Rudolf J Streif <3a3f8ba70589896d7aa2a0a0d3bcf865c0bd58b4@jaguarlandrover.com>

GENIVI/vehicle_signal_specification,GENIVI/vehicle_signal_specification