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.

Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>