Migrate EasterEgg, JankBench, UiBench to androidx

Bug: 76692459
Test: make -j EasterEgg JankBench UiBench
Change-Id: Id9bed936dd1cb1cb4e1c0792618c9a3d608c1fb8
diff --git a/tests/UiBench/src/com/android/test/uibench/leanback/BitmapLoader.java b/tests/UiBench/src/com/android/test/uibench/leanback/BitmapLoader.java
index 8af9d3b..ca379da 100644
--- a/tests/UiBench/src/com/android/test/uibench/leanback/BitmapLoader.java
+++ b/tests/UiBench/src/com/android/test/uibench/leanback/BitmapLoader.java
@@ -21,7 +21,7 @@
 import android.graphics.Color;
 import android.graphics.Paint;
 import android.os.AsyncTask;
-import android.support.v4.util.LruCache;
+import androidx.collection.LruCache;
 import android.util.DisplayMetrics;
 import android.widget.ImageView;