MAGETWO-88247: Row parallax background is broken when background position is set

- Allow HTML tooltip descriptions

Author: davemacaulay

app/code/Magento/Ui/view/base/web/templates/form/element/helper/tooltip.html

@@ -6,5 +6,5 @@
 -->
 <div class="admin__field-tooltip">
     <a class="admin__field-tooltip-action action-help" target="_blank" tabindex="1" attr="href: tooltip.link"/>
-    <div class="admin__field-tooltip-content" text="tooltip.description"/>
+    <div class="admin__field-tooltip-content" html="tooltip.description"/>
 </div>