apparmor: replace remaining BUG_ON() asserts with AA_BUG()

AA_BUG() uses WARN and won't break the kernel like BUG_ON().

Signed-off-by: John Johansen <john.johansen@canonical.com>
diff --git a/security/apparmor/apparmorfs.c b/security/apparmor/apparmorfs.c
index 6834000..41073f7 100644
--- a/security/apparmor/apparmorfs.c
+++ b/security/apparmor/apparmorfs.c
@@ -91,7 +91,7 @@ static struct aa_loaddata *aa_simple_write_to_buffer(const char __user *userbuf,
 {
 	struct aa_loaddata *data;
 
-	BUG_ON(copy_size > alloc_size);
+	AA_BUG(copy_size > alloc_size);
 
 	if (*pos != 0)
 		/* only writes from pos 0, that is complete writes */