LU-12478 build: rhel8 missing module packaing tools

LU-12478 build: rhel8 missing module packaing tools

On RHEL8 kmodtool and kernel_module_package_buildreqs
are not installed with kernel-devel

This helps to bootstrap the developer into a working configuration.

Test-Parameters: trivial
Cray-bug-id: LUS-7385
Signed-off-by: Shaun Tancheff <stancheff@cray.com>
Change-Id: I30cf5c11174b2aa94c663c72e34f8f88c5c90ed8
Reviewed-on: https://review.whamcloud.com/35356
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Li Dongyang <dongyangli@ddn.com>
Reviewed-by: Jian Yu <yujian@whamcloud.com>
Reviewed-by: Petros Koutoupis <pkoutoupis@cray.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>