Rails 5.0/5.1 prepare_binds_for_database is gone

To avoid relying on the connection to type cast the binds, this method was
removed.  It was replaced with the underlying implementation of the
method, which is also used here to replace our usage.

rails/rails@5465508

lib/miq_expression.rb

@@ -1448,7 +1448,7 @@ def extract_where_values(klass, scope)
 
       arel  = relation.arel
       binds = relation.bound_attributes
-      binds = connection.prepare_binds_for_database(binds)
+      binds = binds.collect(&:value_for_database)
       binds.map! { |value| connection.quote(value) }
       collect = visitor.accept(arel.ast, Arel::Collectors::Bind.new)
       collect.substitute_binds(binds).join