LU-11008 kernel: kernel update RHEL6.9 [2.6.32-696.28.1.el6]

LU-11008 kernel: kernel update RHEL6.9 [2.6.32-696.28.1.el6]

Update RHEL6.9 kernel to 2.6.32-696.28.1.el6

Test-Parameters: clientdistro=el6.9 mdsdistro=el6.9 \
  ossdistro=el6.9 mdtfilesystemtype=ldiskfs \
  ostfilesystemtype=ldiskfs testgroup=review-ldiskfs

Change-Id: I3f42c0e9236cbe220486a858c8b5c22918756d78
Signed-off-by: Bob Glossman <bob.glossman@intel.com>
Reviewed-on: https://review.whamcloud.com/32352
Reviewed-by: Minh Diep <minh.diep@intel.com>
Reviewed-by: Yang Sheng <yang.sheng@intel.com>
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: John L. Hammond <john.hammond@intel.com>