ENGCOM-3477: MFTF test fix.

Author: p-bystritsky

app/code/Magento/Checkout/Test/Mftf/Test/StorefrontGuestCheckoutTest.xml

@@ -63,7 +63,7 @@
         <waitForLoadingMaskToDisappear stepKey="waitForLoadingMaskToDisappearOnSearch"/>
         <click selector="{{AdminOrdersGridSection.firstRow}}" stepKey="clickOrderRow"/>
         <see selector="{{AdminOrderDetailsInformationSection.orderStatus}}" userInput="Pending" stepKey="seeAdminOrderStatus"/>
-        <see selector="{{AdminOrderDetailsInformationSection.accountInformation}}" userInput="Guest" stepKey="seeAdminOrderGuest"/>
+        <see selector="{{AdminOrderDetailsInformationSection.accountInformation}}" userInput="{{CustomerEntityOne.fullname}}"  stepKey="seeAdminOrderGuest"/>
         <see selector="{{AdminOrderDetailsInformationSection.accountInformation}}" userInput="{{CustomerEntityOne.email}}" stepKey="seeAdminOrderEmail"/>
         <see selector="{{AdminOrderDetailsInformationSection.billingAddress}}" userInput="{{CustomerAddressSimple.street[0]}}" stepKey="seeAdminOrderBillingAddress"/>
         <see selector="{{AdminOrderDetailsInformationSection.shippingAddress}}" userInput="{{CustomerAddressSimple.street[0]}}" stepKey="seeAdminOrderShippingAddress"/>

app/code/Magento/Customer/Test/Mftf/Data/CustomerData.xml

@@ -21,6 +21,7 @@
         <data key="firstname">John</data>
         <data key="lastname">Doe</data>
         <data key="middlename">S</data>
+        <data key="fullname">John Doe</data>
         <data key="password">pwdTest123!</data>
         <data key="prefix">Mr</data>
         <data key="suffix">Sr</data>