All remote access HAL needs to register itself to service manager,
so add the policy to system/sepolicy/vendor.
Test: Manually run cf_x86_64_auto, verify remote access HAL is
running.
Bug: 241483300
Change-Id: If8c1162eecfcce4792e6309ba351c498e8117687
Will add fuzzer once the service is implemented.
Test: Run remoteaccess HAL on gcar_emu. Verify the service is running.
Bug: 241483300
Change-Id: I01b31a88414536ddd90f9098f422ae43a48cf726