MAGETWO-59702: [FT] Magento\Customer\Test\TestCase\RegisterCustomerFrontendEntityTest fails randomly on CI

- Add test to acceptance plan temporarily;

Author: adifucan

dev/tests/functional/tests/app/Magento/Customer/Test/TestCase/RegisterCustomerFrontendEntityTest.xml

@@ -14,6 +14,7 @@
             <data name="customer/data/is_subscribed" xsi:type="string">No</data>
             <data name="customer/data/password" xsi:type="string">123123^q</data>
             <data name="customer/data/password_confirmation" xsi:type="string">123123^q</data>
+            <data name="tag" xsi:type="string">test_type:acceptance_test</data>
             <constraint name="Magento\Customer\Test\Constraint\AssertCustomerSuccessRegisterMessage" />
             <constraint name="Magento\Customer\Test\Constraint\AssertCustomerInGrid" />
             <constraint name="Magento\Customer\Test\Constraint\AssertCustomerLogout" />
@@ -24,6 +25,7 @@
             <data name="customer/data/email" xsi:type="string">johndoe%isolation%@example.com</data>
             <data name="customer/data/is_subscribed" xsi:type="string">Yes</data>
             <data name="customer/data/password" xsi:type="string">123123^q</data>
+            <data name="tag" xsi:type="string">test_type:acceptance_test</data>
             <data name="customer/data/password_confirmation" xsi:type="string">123123^q</data>
             <constraint name="Magento\Customer\Test\Constraint\AssertCustomerSuccessRegisterMessage" />
             <constraint name="Magento\Customer\Test\Constraint\AssertCustomerInGrid" />