Set mEnableDrawingLiveTile = false in RecentsView#reset()

This should help ensure we only finish the recents controller when we're actually still in live tile mode.

Test: theoretical (no repro steps)
Fixes: 187354606 (hopefully)
Change-Id: If0632f03535e4aafaea751724f080f272a6af58f
diff --git a/quickstep/src/com/android/quickstep/views/RecentsView.java b/quickstep/src/com/android/quickstep/views/RecentsView.java
index 376cb31..1c7242d 100644
--- a/quickstep/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/src/com/android/quickstep/views/RecentsView.java
@@ -1561,6 +1561,7 @@
                 mRecentsAnimationController = null;
             }
         }
+        setEnableDrawingLiveTile(false);
         mLiveTileParams.setTargetSet(null);
         mLiveTileTaskViewSimulator.setDrawsBelowRecents(true);