Sort imports

Having consistent import order will reduce chance of merge
conflict between internal and external master

Test: rebuild
Change-Id: I0b1a170967ddcce7f388603fd521f6ed1eeba30b

src/com/android/settings/display/NightDisplayPreference.java

@@ -17,12 +17,12 @@ package com.android.settings.display;
 import android.content.Context;
 import android.util.AttributeSet;
 
+import androidx.preference.SwitchPreference;
+
 import com.android.internal.app.ColorDisplayController;
 
 import java.time.LocalTime;
 
-import androidx.preference.SwitchPreference;
-
 public class NightDisplayPreference extends SwitchPreference
         implements ColorDisplayController.Callback {