doc: update the CREDITS file

Signed-off-by: Paul Moore <pmoore@redhat.com>
(imported from commit 21f4fa4)

Author: pcmoore

CREDITS

@@ -15,6 +15,7 @@ Marcin Juszkiewicz <mjuszkiewicz@redhat.com>
 Marcus Meissner <meissner@suse.de>
 Markos Chandras <markos.chandras@imgtec.com>
 Michael Forney <mforney@mforney.org>
+Mike Strosaker <strosake@linux.vnet.ibm.com>
 Paul Moore <pmoore@redhat.com>
 Serge Hallyn <serge.hallyn@ubuntu.com>
 Thiago Marcos P. Santos <thiago.santos@intel.com>