LU-11041 kernel: Enable tons of kernel debug options

LU-11041 kernel: Enable tons of kernel debug options

Enable extra debugging options in rhel7 kernels
Create new lbuild option to build with the file config file

Test-Parameters: trivial

Change-Id: I29f503dcc97ff79e27539667e3f1d0edb33c23f4
Signed-off-by: Minh Diep <mdiep@whamcloud.com>
Reviewed-on: https://review.whamcloud.com/32493
Tested-by: Jenkins
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>