Exclude the dumpsys dumps from backups, to avoid error 255 when restoring data backups

Change-Id: I7a83b3789828c1400e31007e868263c54d8eb38c
(cherry picked from commit 13b07f8dbe27d85254e0a04f689a9ed6bde7673e)
diff --git a/partition.cpp b/partition.cpp
index ed0e3fd..98ef3ec 100755
--- a/partition.cpp
+++ b/partition.cpp
@@ -1188,6 +1188,7 @@
 		DataManager::SetValue("tw_has_data_media", 1);
 		backup_exclusions.add_absolute_dir("/data/data/com.google.android.music/files");
 		backup_exclusions.add_absolute_dir("/data/per_boot"); // DJ9,14Jan2020 - exclude this dir to prevent "error 255" on AOSP ROMs that create and lock it
+		backup_exclusions.add_absolute_dir("/data/vendor/dumpsys");
 		backup_exclusions.add_absolute_dir("/data/cache");
 		wipe_exclusions.add_absolute_dir(Mount_Point + "/misc/vold"); // adopted storage keys
 		ExcludeAll(Mount_Point + "/system/storage.xml");