SystemUI: Redraw display cutout on overlay changes

Fixes notch hide overlay on some devices

commit 5481d59996b34cda1cb6b680af7510fee7b53b42
Author: daniml3 <danimoral1001@gmail.com>
Date:   Tue Mar 9 08:11:13 2021 +0100

    SystemUI: check if the cutout views array is null before using it

    Signed-off-by: daniml3 <danimoral1001@gmail.com>
    Change-Id: I1316c61280dadc30a86f2ae72559437a61dd4616

Co-authored-by: daniml3 <danimoral1001@gmail.com>
Change-Id: I5a049099ab375833f1e5ebbda49dc36c3c0b0a68

packages/SystemUI/src/com/android/systemui/ScreenDecorations.java

@@ -986,6 +986,13 @@ public void onConfigurationChanged(Configuration newConfig) {
             updateConfiguration();
             if (DEBUG) Log.i(TAG, "onConfigChanged from rot " + oldRotation + " to " + mRotation);
             setupDecorations();
+            if (mCutoutViews != null) {
+                for (DisplayCutoutView dcv : mCutoutViews) {
+                    if (dcv != null) {
+                        dcv.updateCutout();
+                    }
+                }
+            }
             if (mOverlays != null) {
                 // Updating the layout params ensures that ViewRootImpl will call relayoutWindow(),
                 // which ensures that the forced seamless rotation will end, even if we updated