LU-16089 kernel: kernel update RHEL 7.9 [3.10.0-1160.76.1.el7]

LU-16089 kernel: kernel update RHEL 7.9 [3.10.0-1160.76.1.el7]

Update RHEL 7.9 kernel to 3.10.0-1160.76.1.el7.

Lustre-change: https://review.whamcloud.com/48202
Lustre-commit: 94955bbc6dc82b43fd77150b82834132bc56f565

Test-Parameters: trivial clientdistro=el7.9 serverdistro=el7.9

Change-Id: I97d087a5d5bb27996a5c0caf382c011928c651b4
Signed-off-by: Jian Yu <yujian@whamcloud.com>
Reviewed-on: https://review.whamcloud.com/48277
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: Andreas Dilger <adilger@whamcloud.com>