Fix swipe for notification default should be on instead of off

Set newOneHandedSettingsObserver() defaut value 0 to prevent
blocking swipe-down notification's OneHandedModeInputConsumer
.onStartGestureDetected() when device first booting.

Bug: 175084985

Test: rebuild ROM image and manual
Change-Id: I5fe7d4036ac74682ae72cf210e8b40c63ceb53e1
diff --git a/src/com/android/launcher3/util/SecureSettingsObserver.java b/src/com/android/launcher3/util/SecureSettingsObserver.java
index 4b22429..9fe72ad 100644
--- a/src/com/android/launcher3/util/SecureSettingsObserver.java
+++ b/src/com/android/launcher3/util/SecureSettingsObserver.java
@@ -88,7 +88,7 @@
     public static SecureSettingsObserver newOneHandedSettingsObserver(Context context,
             OnChangeListener listener) {
         return new SecureSettingsObserver(
-                context.getContentResolver(), listener, ONE_HANDED_ENABLED, 1);
+                context.getContentResolver(), listener, ONE_HANDED_ENABLED, 0);
     }
 
     /**