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/search/Indexable.java

@@ -19,12 +19,12 @@ package com.android.settings.search;
 import android.content.Context;
 import android.provider.SearchIndexableResource;
 
+import androidx.annotation.Keep;
+
 import com.android.settingslib.core.AbstractPreferenceController;
 
 import java.util.List;
 
-import androidx.annotation.Keep;
-
 /**
  * Interface for classes whose instances can provide data for indexing.
  *