Confine healthd, but leave it permissive for now.

Remove unconfined_domain() and add the allow rules required for
operation of healthd.  Restore the permissive declaration until
I8a3e0db15ec5f4eb05d455a57e8446a8c2b484c2 is applied to the 3.4
kernel.

Resolves the following denials in 4.4:
type=1400 audit(1383590167.750:14): avc:  denied  { read } for  pid=49 comm="healthd" path="/sbin/healthd" dev="rootfs" ino=1232 scontext=u:r:healthd:s0 tcontext=u:object_r:rootfs:s0 tclass=file
type=1400 audit(1383590167.750:15): avc:  denied  { mknod } for  pid=49 comm="healthd" capability=27  scontext=u:r:healthd:s0 tcontext=u:r:healthd:s0 tclass=capability
type=1400 audit(1383590167.750:16): avc:  denied  { create } for  pid=49 comm="healthd" scontext=u:r:healthd:s0 tcontext=u:r:healthd:s0 tclass=netlink_kobject_uevent_socket
type=1400 audit(1383590167.750:17): avc:  denied  { setopt } for  pid=49 comm="healthd" scontext=u:r:healthd:s0 tcontext=u:r:healthd:s0 tclass=netlink_kobject_uevent_socket
type=1400 audit(1383590167.750:17): avc:  denied  { net_admin } for  pid=49 comm="healthd" capability=12  scontext=u:r:healthd:s0 tcontext=u:r:healthd:s0 tclass=capability
type=1400 audit(1383590167.750:18): avc:  denied  { bind } for  pid=49 comm="healthd" scontext=u:r:healthd:s0 tcontext=u:r:healthd:s0 tclass=netlink_kobject_uevent_socket
shell@generic:/ $ type=1400 audit(1383590168.800:21): avc:  denied  { call } for  pid=49 comm="healthd" scontext=u:r:healthd:s0 tcontext=u:r:servicemanager:s0 tclass=binder
type=1400 audit(1383590168.800:22): avc:  denied  { transfer } for  pid=49 comm="healthd" scontext=u:r:healthd:s0 tcontext=u:r:servicemanager:s0 tclass=binder
type=1400 audit(1383590168.800:23): avc:  denied  { 0x10 } for  pid=49 comm="healthd" capability=36  scontext=u:r:healthd:s0 tcontext=u:r:healthd:s0 tclass=capability2
type=1400 audit(1383590168.800:24): avc:  denied  { read } for  pid=49 comm="healthd" scontext=u:r:healthd:s0 tcontext=u:r:healthd:s0 tclass=netlink_kobject_uevent_socket
type=1400 audit(1383590212.320:161): avc:  denied  { call } for  pid=376 comm="system_server" scontext=u:r:system_server:s0 tcontext=u:r:healthd:s0 tclass=binder
type=1400 audit(1383590212.320:161): avc:  denied  { transfer } for  pid=376 comm="system_server" scontext=u:r:system_server:s0 tcontext=u:r:healthd:s0 tclass=binder
type=1400 audit(1383590212.320:162): avc:  denied  { call } for  pid=49 comm="healthd" scontext=u:r:healthd:s0 tcontext=u:r:system_server:s0 tclass=binder
type=1400 audit(1383590275.930:463): avc:  denied  { call } for  pid=49 comm="healthd" scontext=u:r:healthd:s0 tcontext=u:r:system_server:s0 tclass=binder

Change-Id: Iacd058edfa1e913a8f24ce8937d2d76c928d6740
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>