Add AppLocalePreference for Spa

Also let SettingsSpaUnitTests depends on the
mockito-target-extended-minus-junit4 to support mock static methods.

Bug: 236346018
Test: Unit test & Manual with Settings App
Change-Id: Ib7a3022b20e30c8292713f52d29785eb78899c70

src/com/android/settings/applications/appinfo/AppLocalePreferenceController.java

@@ -60,7 +60,7 @@ public class AppLocalePreferenceController extends AppInfoPreferenceControllerBa
 
     @Override
     public CharSequence getSummary() {
-        return AppLocaleDetails.getSummary(mContext, mParent.getAppEntry());
+        return AppLocaleDetails.getSummary(mContext, mParent.getAppEntry().info);
     }
 
     @Override