TT#107051 enable "add" for PATCH /billingprofiles/x

(cherry picked from commit 92455d8566)
(cherry picked from commit b46ad2f1fec97416527673efa04066681a7d2014)

Change-Id: I4a284fb0ea636402c19e98369dbb9c2a05ea1d94

lib/NGCP/Panel/Controller/API/BillingProfilesItem.pm

@@ -78,6 +78,7 @@ sub PATCH :Allow {
             c => $c,
             id => $id,
             media_type => 'application/json-patch+json',
+            ops => ["add", "replace", "copy", "remove"],
         );
         last unless $json;
 
@@ -85,8 +86,7 @@ sub PATCH :Allow {
         my $profile = $self->profile_by_id($c, $id);
         last unless $self->resource_exists($c, billingprofile => $profile);
         my $old_resource = $self->resource_from_item($c, $profile, $form);
-        $old_resource = clone($old_resource);
-        my $resource = $self->apply_patch($c, $old_resource, $json);
+        my $resource = $self->apply_patch($c, clone($old_resource), $json);
         last unless $resource;
 
         $profile = $self->update_profile($c, $profile, $old_resource, $resource, $form);