LU-18632 debian: add uapi headers to dkms module package

LU-18632 debian: add uapi headers to dkms module package

Kernel-related header files (uapi) are only packaged in 'lustre-client-modules'
package, and not with dkms. Ensure they are packages for both type of packages.

We need to provide them alongside the kernel module packages to avoid future
conflicts if Lustre is available through the distro linux kernel.

Test-Parameters: trivial
Change-Id: Iab154cf46c121fa6cc8d559ba6ad63ffe19f52a5
Signed-off-by: Aurelien Degremont <adegremont@nvidia.com>
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/57749
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Reviewed-by: Timothy Day <timday@amazon.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>