MT#58581 /api/customers fix filter by profile_package_id

* filtering by package_id with an incorrect search db query (non-existing
  field) caused a 500 error
* package_id filter is renamed into profile_package_id to correspond
  to the response field
* fix profile_package_id db search query

Change-Id: Ia93e0662172dd89e85572717cbb99a2ed51eb3a7

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

@@ -94,11 +94,12 @@ sub query_params {
             },
         },
         {
-            param => 'package_id',
+            param => 'profile_package_id',
             description => 'Filter for customers with specific profile package id',
             query => {
                 first => sub {
                     my $q = shift;
+                    { profile_package_id => $q };
                 },
                 second => sub { },
             },