LU-13345 kernel: kernel update SLES12 SP4 [4.12.14-95.48.1]

Update SLES12 SP4 kernel to 4.12.14-95.48.1 for Lustre client.

Test-Parameters: trivial clientdistro=sles12sp4 \
env=LNET_SELFTEST_EXCEPT=smoke,SANITY_EXCEPT="56oc 817"

Change-Id: I1c6971001e813807d37cc177c9969bad78048cf0
Signed-off-by: Jian Yu <yujian@whamcloud.com>
Reviewed-on: https://review.whamcloud.com/38247
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Yang Sheng <ys@whamcloud.com>
Reviewed-by: Minh Diep <mdiep@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>