grant deviceidle_service app_api_service attribute

avc:  denied  { find } for service=deviceidle pid=26116 uid=10007 scontext=u:r:untrusted_app:s0:c512,c768
tcontext=u:object_r:deviceidle_service:s0 tclass=service_manager

Bug: 25734577
Change-Id: I3c955e6df2186ad7adb6b599c5b6b802b8ecd8de