Revert "change DragDropTest's screen orientation to "portrait""

This reverts commit f79b21da33115576461a357af3eece75de891172.

Fix android TV devices which do not support portrait mode
Bug: 113126089
Test: this test (adb shell am instrument -w -e class android.view.cts.DragDropTest#testDrawableState android.view.cts/android.support.test.runner.AndroidJUnitRunner)

Change-Id: Ic9fafa73c51ba897cbd344a042a13d9e70ab2d68
diff --git a/tests/tests/view/AndroidManifest.xml b/tests/tests/view/AndroidManifest.xml
index a9cb2cd..4217959 100644
--- a/tests/tests/view/AndroidManifest.xml
+++ b/tests/tests/view/AndroidManifest.xml
@@ -297,7 +297,7 @@
         </activity>
 
         <activity android:name="android.view.cts.DragDropActivity"
-                  android:screenOrientation="portrait"
+                  android:screenOrientation="locked"
                   android:label="DragDropActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />