Make hci_attach enforcing.

Change-Id: I27c62a7ab7223eb74f44a78c273dd97f1380bc61
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>

hci_attach.te

 type hci_attach, domain;
-permissive_or_unconfined(hci_attach)
 type hci_attach_exec, exec_type, file_type;
 
 init_daemon_domain(hci_attach)