Increase Holo long timeout to 6 seconds

The "_pressed" tests seem to occasionally fail, so lengthen the timeout
in hopes that the captured bitmap shows the widgets in their pressed
state.

Bug 6292891

Change-Id: I6a3ced55300cd36915815d8212632cf68aa80eea
diff --git a/tests/tests/holo/src/android/holo/cts/LayoutAdapter.java b/tests/tests/holo/src/android/holo/cts/LayoutAdapter.java
index aa161a2..3a0e2af 100644
--- a/tests/tests/holo/src/android/holo/cts/LayoutAdapter.java
+++ b/tests/tests/holo/src/android/holo/cts/LayoutAdapter.java
@@ -52,7 +52,7 @@
     private static final int SHORT_TIMEOUT_MS = 500;
 
     /** Longer timeout for widgets that have one-time animations. */
-    private static final int LONG_TIMEOUT_MS = 3000;
+    private static final int LONG_TIMEOUT_MS = 6000;
 
     static class LayoutInfo {
         private final int mDisplayName;