am cdfde07e: am f642c3d1: Make drmserver\'s primary group be system, so setgid is not required in ueventd.stingray.rc

* commit 'cdfde07eb7bd02bf8b3f6c46784309d33ff1df1e':
  Make drmserver's primary group be system, so setgid is not required in ueventd.stingray.rc