LU-16174 kernel: kernel update SLES15 SP4 [5.14.21-150400.24.21.2]

LU-16174 kernel: kernel update SLES15 SP4 [5.14.21-150400.24.21.2]

Update SLES15 SP4 kernel to 5.14.21-150400.24.21.2 for Lustre client.

Lustre-change: https://review.whamcloud.com/48604
Lustre-commit: TBD (from 896fd88c35b6685a586c1279c83c739b48cbe846)

Test-Parameters: trivial clientdistro=sles15sp4 \
env=SANITY_EXCEPT="27J 101j 244a" testlist=sanity

Change-Id: Ia68e1c960c79f40d0f725b0f440cd562b820a19f
Signed-off-by: Jian Yu <yujian@whamcloud.com>
Reviewed-on: https://review.whamcloud.com/c/ex/lustre-release/+/48689
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Yang Sheng <ys@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>