Install a udev rules file in the unicens-config recipe to set the
group and SMACK label on the inic character devices so they are
accessible by services with the new audio permission.
Bug-AGL: SPEC-2591
Change-Id: I52135cf62ca8bfab0badd8850d49639d86ed73c1 Signed-off-by: Scott Murray <scott.murray@konsulko.com>