LU-18196 build: Use -j nproc in lustre dkms install during make

LU-18196 build: Use -j nproc in lustre dkms install during make

This is a port of
Lustre-change: https://review.whamcloud.com/47132
Lustre-commit: 56e33729e84f87a73415e195567ae29ec6ab6cda
EX-bug-id：EX-4080

Test-Parameters: trivial

Signed-off-by: Gaurang Tapase <gtapase@ddn.com>
Signed-off-by: Emoly Liu <emoly@whamcloud.com>
Change-Id: I4f815a0be8900ad427e59cace9a6afc3297710d0
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/56234
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>
Reviewed-by: Jian Yu <yujian@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Tested-by: jenkins <devops@whamcloud.com>