sepolicy: Dont audit denials to find attr for netd_service

- suppressing unwanted denials for which we are
  not going to add rules.

SELinux : avc:  denied  { find } for service=netd pid=1777 uid=1002
scontext=u:r:bluetooth:s0 tcontext=u:object_r:netd_service:s0
tclass=service_manager permissive=0

CRs-fixed: 2291617
Change-Id: I74cb511233002d47141426cd7d0545f8ef1a0de7