Add hidden apis to allow checking of hardware mic/cam toggles

The service already supports a hardware type so this change introduces
new overloads which add a parameter to check between hardware/software
or any other future types.

Bug: 191745272
Test: Manual, CtsSensorPrivacyTestCases, SensorPrivacyServiceMockingTest

Change-Id: Icda09da03f5361997566a62e3a72b25a760ef3ca