selinux: update my email address

Update my email address since epoch.ncsc.mil no longer exists.
MAINTAINERS and CREDITS are already correct.

Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: Paul Moore <paul@paul-moore.com>
diff --git a/security/selinux/include/objsec.h b/security/selinux/include/objsec.h
index 6ebc61e..1649cd1 100644
--- a/security/selinux/include/objsec.h
+++ b/security/selinux/include/objsec.h
@@ -3,7 +3,7 @@
  *
  *  This file contains the SELinux security data structures for kernel objects.
  *
- *  Author(s):  Stephen Smalley, <sds@epoch.ncsc.mil>
+ *  Author(s):  Stephen Smalley, <sds@tycho.nsa.gov>
  *		Chris Vance, <cvance@nai.com>
  *		Wayne Salamon, <wsalamon@nai.com>
  *		James Morris <jmorris@redhat.com>