Return mIconLastSetTextAlpha from TEXT_ALPHA property

am: 8ed3b437b1

Change-Id: I01cada1a1cca22e2e7792b019dd74221c0451cf3

quickstep/recents_ui_overrides/src/com/android/launcher3/appprediction/PredictionRowView.java

@@ -80,7 +80,7 @@ public class PredictionRowView extends LinearLayout implements
 
                 @Override
                 public Integer get(PredictionRowView view) {
-                    return view.mIconCurrentTextAlpha;
+                    return view.mIconLastSetTextAlpha;
                 }
             };