* Needed for AIDL HDMI-CEC HAL to work. Some functions that were in the
HIDL HDMI-CEC HAL have been moved to separate HDMI connection HAL in the
AIDL versions. Only returns connection status of HDMI ports on Pi.
onHotplugEvent is not implemented.
* Use hardware/interfaces/tv/hdmi/connection/aidl/ as reference.