LU-16350 ldiskfs: update for kernel 6.11

LU-16350 ldiskfs: update for kernel 6.11

Update ext4-kill-dx-root.patch and ext4-lookup-dotdot.patch
for kernel 6.11.

These updates are also applicable to 6.10 stable, tested with
6.10.6 stable.

HPE-bug-id: LUS-11376
Test-Parameters: trivial
Signed-off-by: Shaun Tancheff <shaun.tancheff@hpe.com>
Change-Id: I94f95eeff65b80f879a8b34aea05dc5fa289aa73
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/56284
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Li Dongyang <dongyangli@ddn.com>
Reviewed-by: Jian Yu <yujian@whamcloud.com>