meta-security: subtree update:c55721b15e..27ddb45554

Armin Kuster (2):
      apparmor: fix systemd support so it works
      apparmor: ptest fail to build on arm

Change-Id: Ibe394a28d6fef07dd97031c6e24b4d7e9edf8cfb
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>