Add electric defrosters and unknown in FanDiretion

Add a new property stands for electric defrosters.
Add a enum unknown in VehicleHvacFanDirection.
Add the new property into Google VHAL config file.

Bug: 126756367
Bug: 132187457
Test: build and flash
Change-Id: I853666ebbb0f5286ce59faeb02f0f37259a88c54