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/datetime/timezone/BaseTimeZonePreferenceController.java

@@ -18,12 +18,12 @@ package com.android.settings.datetime.timezone;
 
 import android.content.Context;
 
+import androidx.preference.Preference;
+
 import com.android.settings.core.BasePreferenceController;
 
 import com.google.common.base.Objects;
 
-import androidx.preference.Preference;
-
 public abstract class BaseTimeZonePreferenceController extends BasePreferenceController {
     private OnPreferenceClickListener mOnClickListener;