Add isHidlSupported API and use it

This is initially always going to return true until we have removed all
HIDL from Cuttlefish. Then it will be based on the vendor API level.

Test: remove kTempHidlSupport && m && launch_cvd
Bug: 218588089
Change-Id: Ic688df8bb0942e1aa8ba9bf5a34514083be1f2b4
2 files changed