LU-11848 misc: update e2fsprogs to 1.45.6.wc3

LU-11848 misc: update e2fsprogs to 1.45.6.wc3

Update Changelog to reference new e2fsprogs release.

23547cbe57df LU-14126 e2fsck: update mmp block race
0b6718f5e22d LU-11848 filefrag: support PFL and FLR file
502f2e17bd5b LU-13797 e2fsck: quiet 'extent tree could be narrower'
94318cef3508 misc: replace remaining loff_t with ext2_loff_t

Test-Parameters: trivial
Signed-off-by: Andreas Dilger <adilger@whamcloud.com>
Change-Id: I4b3859dfe3950f3b23e47f69ecf8b3ab053ebbe5
Reviewed-on: https://review.whamcloud.com/40967
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Wang Shilong <wshilong@whamcloud.com>
Reviewed-by: Peter Jones <pjones@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>