exfat: release 5.19.1 version
Major changes are:
- fix referencing wrong parent directory information during rename.
- introduce a sys_tz mount option to use system timezone.
- improve performance while zeroing a cluster with dirsync mount option.
- fix slab-out-bounds in exat_clear_bitmap() reported from syzbot.
- Add keep_last_dots mount option to allow access to paths with trailing dots.
- Avoid repetitive volume dirty bit set/clear to improve storage life time.
- Fix ->i_blocks truncation issue that still exists elsewhere.
- 4 cleanups & typos fixes.
- Move super block magic number to magic.h
- Fix missing REQ_SYNC in exfat_update_bhs().
- Fix ->i_blocks truncation issue caused by wrong 32bit mask.