Use DeviceProfile.isTwoPanels for two panels expectation in tests

Fix: 193810767
Test: TaplTestsLauncher3.testWorkspace
Change-Id: Ifec5506415b79f3effa84fe0163eb1bb2bc7cc8d

src/com/android/launcher3/testing/TestInformationHandler.java

@@ -121,6 +121,11 @@ public class TestInformationHandler implements ResourceBasedOverride {
                 response.putBoolean(TestProtocol.TEST_INFO_RESPONSE_FIELD, mDeviceProfile.isTablet);
                 return response;
 
+            case TestProtocol.REQUEST_IS_TWO_PANELS:
+                response.putBoolean(TestProtocol.TEST_INFO_RESPONSE_FIELD,
+                    mDeviceProfile.isTwoPanels);
+                return response;
+
             default:
                 return null;
         }