LU-12637 kernel: new kernel [RHEL 8.1 4.18.0-147.3.1.el8_1]

This patch makes changes to support new RHEL 8.1 release
for Lustre client.

Test-Parameters: trivial clientdistro=el8.1 \
envdefinitions=SANITY_EXCEPT="411" \
testlist=sanity

Change-Id: Ifcc0a15c3ad9afa99b670641f91b23c1a5c0668e
Signed-off-by: Jian Yu <yujian@whamcloud.com>
Reviewed-on: https://review.whamcloud.com/36946
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: James Nunez <jnunez@whamcloud.com>
Reviewed-by: Yang Sheng <ys@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>