apparmor: fix checkpatch error in Parse secmark policy

Fix missed spacing error reported by checkpatch for
9caafbe2b4cf ("Parse secmark policy")

Signed-off-by: John Johansen <john.johansen@canonical.com>

security/apparmor/policy.c

@@ -231,7 +231,7 @@ void aa_free_profile(struct aa_profile *profile)
 	for (i = 0; i < profile->xattr_count; i++)
 		kzfree(profile->xattrs[i]);
 	kzfree(profile->xattrs);
-	for (i=0; i < profile->secmark_count; i++)
+	for (i = 0; i < profile->secmark_count; i++)
 		kzfree(profile->secmark[i].label);
 	kzfree(profile->secmark);
 	kzfree(profile->dirname);