LU-17767 build: struct lsmcontext has slot or id member

LU-17767 build: struct lsmcontext has slot or id member

With Ubuntu 24.04 kernel 6.8.0-31-generic, the struct lsmcontext uses
a field named 'id' to identify the LSM module, instead of 'slot' in
previous kernel versions.

Lustre-change: https://review.whamcloud.com/54881
Lustre-commit: TBD (from 7764f73b8e25f8658867e7ab080fe5d8ec62230b)

Fixes: 0e66489401 ("LU-16619 build: Ubuntu jammy 5.19 client support")
Test-Parameters: trivial
Signed-off-by: Sebastien Buisson <sbuisson@ddn.com>
Change-Id: I5080e60614b42ed63103f93cae1f481851742d0b
Reviewed-on: https://review.whamcloud.com/c/ex/lustre-release/+/54882
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>