Move domains into per-domain permissive mode.

Bug: 4070557
Change-Id: I027f76cff6df90e9909711cb81fbd17db95233c1
diff --git a/su.te b/su.te
index 75e6214..ca9fcc2 100644
--- a/su.te
+++ b/su.te
@@ -1,4 +1,5 @@
 type su, domain;
+permissive su;
 type su_exec, file_type;
 domain_auto_trans(shell, su_exec, su)