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/slices/CustomSliceable.java

@@ -22,11 +22,11 @@ import android.content.Intent;
 import android.content.IntentFilter;
 import android.net.Uri;
 
+import androidx.slice.Slice;
+
 import java.lang.reflect.Constructor;
 import java.lang.reflect.InvocationTargetException;
 
-import androidx.slice.Slice;
-
 
 /**
  * Common functions for custom Slices.