lsm_audit: 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>

include/linux/lsm_audit.h

@@ -4,7 +4,7 @@
  *
  * Author : Etienne BASSET  <etienne.basset@ensta.org>
  *
- * All credits to : Stephen Smalley, <sds@epoch.ncsc.mil>
+ * All credits to : Stephen Smalley, <sds@tycho.nsa.gov>
  * All BUGS to : Etienne BASSET  <etienne.basset@ensta.org>
  */
 #ifndef _LSM_COMMON_LOGGING_

security/lsm_audit.c

@@ -2,7 +2,7 @@
  * common LSM auditing functions
  *
  * Based on code written for SELinux by :
- *			Stephen Smalley, <sds@epoch.ncsc.mil>
+ *			Stephen Smalley, <sds@tycho.nsa.gov>
  * 			James Morris <jmorris@redhat.com>
  * Author : Etienne Basset, <etienne.basset@ensta.org>
  *