Camera: Add ICameraDevice@3.6 subinterface

Camera device subinterface version 3.6 must inherit
from the previous version 3.5 and continue to support
device sessions with versions 3.2, 3.5 as well as the
most recent 3.6.

Bug: 148235329
Test: VtsHalCameraProviderV2_4TargetTest
--gtest_filter=PerInstance/CameraHidlTest.switchToOffline/0_external_0

Change-Id: Ia46cbd771eb1d2624cc0cee808a3eb074fc775b6