ENGCOM-4053: MTF test fix.

Author: p-bystritsky

dev/tests/functional/tests/app/Magento/ConfigurableProduct/Test/Block/Adminhtml/Product/Composite/Configure.xml

@@ -8,7 +8,7 @@
 <mapping strict="0">
     <fields>
         <attribute>
-            <selector>//div[@class="product-options"]//label[.="%s"]//following-sibling::*//select</selector>
+            <selector>//div[contains(@class, "product-options")]//div//label[.="%s"]//following-sibling::*//select</selector>
             <strategy>xpath</strategy>
             <input>select</input>
         </attribute>