Added Translation for required Data-Attribute

This is similar to magento/module-checkout/view/frontend/web/template/shipping-address/form.html line 7

Author: DavidLambauer

app/code/Magento/Checkout/view/frontend/web/template/billing-address/form.html

@@ -8,7 +8,7 @@
     <!-- ko foreach: getRegion('before-fields') -->
     <!-- ko template: getTemplate() --><!-- /ko -->
     <!--/ko-->
-    <form data-hasrequired="* Required Fields">
+    <form data-bind="attr: {'data-hasrequired': $t('* Required Fields')}">
         <fieldset id="billing-new-address-form" class="fieldset address">
             <!-- ko foreach: getRegion('additional-fieldsets') -->
             <!-- ko template: getTemplate() --><!-- /ko -->