AOD: Ensure dark amount is set after reinflating

Change-Id: I04437fb282db4bbbe81a3bf5267d081f19b49cae
Fixes: 62970437
Test: change wallpaper while device is on AOD, ensure date is not visible
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java
index 4701f85..5116414 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java
@@ -348,6 +348,7 @@
                 false);
         addView(mKeyguardBottomArea, index);
         initBottomArea();
+        setDarkAmount(mDarkAmount);
     }
 
     private void initBottomArea() {