MT#58890 force cft_ringtimeout as number

Change-Id: I4df4fbf6522d28a30731c87a36c95ae8350830fa
(cherry picked from commit cc8fd8928d)

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

@@ -35,7 +35,7 @@ sub documentation_sample {
         }],
         cfna => [],
         cft => [],
-        cft_ringtimeout => "200",
+        cft_ringtimeout => 200,
         cfu => [],
         cfs => [],
         cfr => [],

lib/NGCP/Panel/Role/API/CFMappings.pm

@@ -112,7 +112,7 @@ sub hal_from_item {
         resource => $resource,
         run => 0,
     );
-    $resource->{cft_ringtimeout} = $ringtimeout_preference;
+    $resource->{cft_ringtimeout} = (length($ringtimeout_preference) ? $ringtimeout_preference + 0 : undef);
     $resource->{id} = int($item->id);
 
     $self->expand_fields($c, $resource);