UPSTREAM: f2fs: prevent atomic file from being dirtied before commit

Keep atomic file clean while updating and make it dirtied during commit
in order to avoid unnecessary and excessive inode updates in the previous
fix.

Fixes: 4bf78322 ("f2fs: mark inode dirty for FI_ATOMIC_COMMITTED flag")
Signed-off-by: Daeho Jeong <daehojeong@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

Bug: 369150601
Change-Id: I0174f94f33485d03f8eb9382f87a12ea0a67f98c
(cherry picked from commit fccaa81d)
Signed-off-by: Daeho Jeong <daehojeong@google.com>