Set portrait orientation for FallbackRecentsTest

Bug: 131364673
Change-Id: I77f3058e09eadc5bcbfe48c768f78883082a526d
diff --git a/quickstep/tests/src/com/android/quickstep/FallbackRecentsTest.java b/quickstep/tests/src/com/android/quickstep/FallbackRecentsTest.java
index f436831..20fdff2 100644
--- a/quickstep/tests/src/com/android/quickstep/FallbackRecentsTest.java
+++ b/quickstep/tests/src/com/android/quickstep/FallbackRecentsTest.java
@@ -32,6 +32,7 @@
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.ActivityInfo;
+import android.os.RemoteException;
 
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -65,10 +66,11 @@
 
     @Rule public final TestRule mSetLauncherCommand;
 
-    public FallbackRecentsTest() {
+    public FallbackRecentsTest() throws RemoteException {
         Instrumentation instrumentation = getInstrumentation();
         Context context = instrumentation.getContext();
         mDevice = UiDevice.getInstance(instrumentation);
+        mDevice.setOrientationNatural();
         mLauncher = new LauncherInstrumentation(instrumentation);
 
         mQuickstepOnOffExecutor = new NavigationModeSwitchRule(mLauncher);