am e7921bc3: am 190c704d: Allow healthd to read/write /dev/__null_.

* commit 'e7921bc3':
  Allow healthd to read/write /dev/__null_.

healthd.te

@@ -6,6 +6,9 @@ type healthd_exec, exec_type, file_type;
 init_daemon_domain(healthd)
 allow healthd rootfs:file { read entrypoint };
 write_klog(healthd)
+# /dev/__null__ created by init prior to policy load,
+# open fd inherited by healthd.
+allow healthd tmpfs:chr_file { read write };
 
 allow healthd self:capability { net_admin mknod };
 allow healthd self:capability2 block_suspend;