MTP: pass format back as default value in GetObjectPropDesc for format property

Change-Id: Icc4071af16763a613c9fb31e87dc716f1516c7d8
Signed-off-by: Mike Lockwood <lockwood@android.com>

media/jni/android_media_MtpDatabase.cpp

@@ -933,6 +933,9 @@ MtpProperty* MyMtpDatabase::getObjectPropertyDesc(MtpObjectProperty property,
     MtpProperty* result = NULL;
     switch (property) {
         case MTP_PROPERTY_OBJECT_FORMAT:
+            // use format as default value
+            result = new MtpProperty(property, MTP_TYPE_UINT16, false, format);
+            break;
         case MTP_PROPERTY_PROTECTION_STATUS:
         case MTP_PROPERTY_TRACK:
             result = new MtpProperty(property, MTP_TYPE_UINT16);