Move GearPreference to widget package.

- This is step1 of making gear preference more flexible to use.

Bug: 33579296
Test: builds
Change-Id: I30ac6c75f7ad16ec5c732fbb93170e5fab0eacb7

src/com/android/settings/vpn2/ManageablePreference.java

@@ -23,7 +23,7 @@ import android.os.UserManager;
 import android.text.TextUtils;
 import android.util.AttributeSet;
 
-import com.android.settings.GearPreference;
+import com.android.settings.widget.GearPreference;
 import com.android.settings.R;
 
 /**