Call selinux_status_open() prior to use of selinux_status_updated().

The selinux_status_*() interfaces require calling selinux_status_open()
first.  Since this was not being called by servicemanager, the
selinux_status_updated() call was always failing and servicemanager
was not reloading service_contexts upon a policy reload.

Change-Id: I6ac62e114bbca99c5f0999feb918fcde15009274
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
diff --git a/cmds/servicemanager/service_manager.c b/cmds/servicemanager/service_manager.c
index cacfe14..7fa9a39 100644
--- a/cmds/servicemanager/service_manager.c
+++ b/cmds/servicemanager/service_manager.c
@@ -361,6 +361,7 @@
 
     selinux_enabled = is_selinux_enabled();
     sehandle = selinux_android_service_context_handle();
+    selinux_status_open(true);
 
     if (selinux_enabled > 0) {
         if (sehandle == NULL) {