apparmor: move lib definitions into separate lib include

Signed-off-by: John Johansen <john.johansen@canonical.com>
diff --git a/security/apparmor/lib.c b/security/apparmor/lib.c
index 2ef422a..6028ffc 100644
--- a/security/apparmor/lib.c
+++ b/security/apparmor/lib.c
@@ -19,7 +19,7 @@
 
 #include "include/audit.h"
 #include "include/apparmor.h"
-
+#include "include/lib.h"
 
 /**
  * aa_split_fqname - split a fqname into a profile and namespace name