Increasing wait time after mode switch.

This is temporary. Apparently, it takes time for Sys UI to update after
the mode switch.

Change-Id: I434b86af15d9987a448682684c790d89acab85dc
diff --git a/quickstep/tests/src/com/android/quickstep/NavigationModeSwitchRule.java b/quickstep/tests/src/com/android/quickstep/NavigationModeSwitchRule.java
index e552f56..c3e46ea 100644
--- a/quickstep/tests/src/com/android/quickstep/NavigationModeSwitchRule.java
+++ b/quickstep/tests/src/com/android/quickstep/NavigationModeSwitchRule.java
@@ -133,7 +133,7 @@
 
                     for (int i = 0; i != 100; ++i) {
                         if (mLauncher.getNavigationModel() == expectedMode) {
-                            Thread.sleep(1000);
+                            Thread.sleep(5000);
                             return;
                         }
                         Thread.sleep(100);