Launching Audio and AudioControl HALs together

- Created local implementation of AudioControl HAL for caremu
- Registering AudioControl and Audio HALs in same main function

Bug: 181550943
Test: built & ran `adb shell service list`
Test: ran `adb shell dumpsys
android.hardware.automotive.audiocontrol.IAudioControl/default`
to verify service is responding.
Test: Played sounds in emulator to verify they were still audible

Change-Id: I759dda65753659b9565912773aad50ff6b76f418