Migrate Settings to androidx.

Test: make Settings
Bug: 76692459
Change-Id: I941dea40562170649bf056e675cc32e5163c0e39
diff --git a/src/com/android/settings/SummaryPreference.java b/src/com/android/settings/SummaryPreference.java
index dbe036a..8823027 100644
--- a/src/com/android/settings/SummaryPreference.java
+++ b/src/com/android/settings/SummaryPreference.java
@@ -15,8 +15,8 @@
 package com.android.settings;
 
 import android.content.Context;
-import android.support.v7.preference.Preference;
-import android.support.v7.preference.PreferenceViewHolder;
+import androidx.preference.Preference;
+import androidx.preference.PreferenceViewHolder;
 import android.text.TextUtils;
 import android.util.AttributeSet;
 import android.view.View;