encryption: fix offset inconsistency between crypter and file (#15092) (

#15207)

close #15080

Fix offset inconsistency between crypter and file that could cause data corruption when file I/O is interrupted.

Signed-off-by: tabokie <xy.tao@outlook.com>

Co-authored-by: tabokie <xy.tao@outlook.com>
Co-authored-by: tonyxuqqi <tonyxuqi@outlook.com>