LU-14450 kernel: kernel update RHEL8.3 [4.18.0-240.15.1.el8_3]

LU-14450 kernel: kernel update RHEL8.3 [4.18.0-240.15.1.el8_3]

Update RHEL8.3 kernel to 4.18.0-240.15.1.el8_3.

Test-Parameters: trivial fstype=ldiskfs \
clientdistro=el8.3 serverdistro=el8.3 testlist=sanity

Test-Parameters: trivial fstype=zfs \
clientdistro=el8.3 serverdistro=el8.3 testlist=sanity

Change-Id: I92ca7769fac17221da376788cfe79887ecc4c19c
Signed-off-by: Jian Yu <yujian@whamcloud.com>
Reviewed-on: https://review.whamcloud.com/42088
Reviewed-by: Minh Diep <mdiep@whamcloud.com>
Reviewed-by: Yang Sheng <ys@whamcloud.com>
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Li Xi <lixi@ddn.com>