Doubling the wait time for activity creation in PortraitLandscapeRunner

Apparently, 10 sec is not sufficient, let's try 20.

Bug: 321772674
Test: presubmit
Flag: N/A
Change-Id: Iec67e4d0cf782d7d966566c305e8b73ee67d0f67
diff --git a/tests/multivalentTests/src/com/android/launcher3/ui/PortraitLandscapeRunner.java b/tests/multivalentTests/src/com/android/launcher3/ui/PortraitLandscapeRunner.java
index 8eebdb2..5ef63da 100644
--- a/tests/multivalentTests/src/com/android/launcher3/ui/PortraitLandscapeRunner.java
+++ b/tests/multivalentTests/src/com/android/launcher3/ui/PortraitLandscapeRunner.java
@@ -14,6 +14,7 @@
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
+import java.util.concurrent.TimeUnit;
 
 public class PortraitLandscapeRunner implements TestRule {
     private static final String TAG = "PortraitLandscapeRunner";
@@ -49,7 +50,8 @@
 
                     mTest.mDevice.pressHome();
                     mTest.waitForLauncherCondition("Launcher activity wasn't created",
-                            launcher -> launcher != null);
+                            launcher -> launcher != null,
+                            TimeUnit.SECONDS.toMillis(20));
 
                     mTest.executeOnLauncher(launcher ->
                             launcher.getRotationHelper().forceAllowRotationForTesting(