webui: use unique ids for checkboxes

Checkboxes have not used unique ids across the whole UI. It broke checking by clicking on label for later displayed instances. It became serious problem when rcue introduced new checkbox styles with 'label clicking' as default check method.

https://fedorahosted.org/freeipa/ticket/3904

Reviewed-By: Adam Misnyovszki <amisnyov@redhat.com>

install/ui/src/freeipa/widget.js

@@ -1199,10 +1199,7 @@ IPA.option_widget_base = function(spec, that) {
     that.get_input_name = function() {
 
         if (!that._input_name) {
-            var name = that.name;
-            if (that.input_type === 'radio') {
-                name = IPA.html_util.get_next_id(name);
-            }
+            var name = IPA.html_util.get_next_id(that.name);
             that._input_name = name;
             that._selector = 'input[name="'+name+'"]';
         }