The usbguard-daemon service should be added to the security_SandboxedServices autotest.

See: https://cs.corp.google.com/chromeos_public/src/third_party/autotest/files/client/site_tests/security_SandboxedServices/baseline?q=avahi-daemon+package:%5Echromeos_(internal%7Cpublic)$&dr=C&l=72