LU-14672 kernel: kernel update SLES12 SP5 [4.12.14-122.66.2]

LU-14672 kernel: kernel update SLES12 SP5 [4.12.14-122.66.2]

Update SLES12 SP5 kernel to 4.12.14-122.66.2 for Lustre client.

Test-Parameters: trivial clientdistro=sles12sp5 \
env=SANITY_EXCEPT="56oc 430c 817" testlist=sanity

Change-Id: Ib2bf4795ccb21dbd0bb9202228ff32d73a203eee
Signed-off-by: Jian Yu <yujian@whamcloud.com>
Reviewed-on: https://review.whamcloud.com/43634
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Yang Sheng <ys@whamcloud.com>
Reviewed-by: Li Xi <lixi@ddn.com>