Log msg for load policy file only if the file is actually loaded
Log msg for load policy file only if the file is actually loaded

The Load entry was previousy in init(), whereas it should have
been in _set_rules() which is invoked only when policies are
(re)loaded from the json file.

Change-Id: Ib4ce66569a64fc4be8f5f77d7f503cc93ac0006e

gkotton/vmware-nsx,gkotton/vmware-nsx