LU-16710 kernel: update RHEL 8.7 [4.18.0-425.19.2.el8_7]

LU-16710 kernel: update RHEL 8.7 [4.18.0-425.19.2.el8_7]

Update RHEL 8.7 kernel to 4.18.0-425.19.2.el8_7.

Lustre-change: https://review.whamcloud.com/50548
Lustre-commit: TBD (from 8cd92d6bdb3726fb25286ead1276622b884805d6)

Test-Parameters: trivial fstype=ldiskfs \
clientdistro=el8.7 serverdistro=el8.7 testlist=sanity

Test-Parameters: trivial fstype=zfs \
clientdistro=el8.7 serverdistro=el8.7 testlist=sanity

Change-Id: I17e43d98d1a3c7217e61771e8ed78a7123f9313f
Signed-off-by: Jian Yu <yujian@whamcloud.com>
Reviewed-on: https://review.whamcloud.com/c/ex/lustre-release/+/50551
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>