LU-16548 lnet: Fixing missing gnilnd define CURRENT_LND_VERSION

LU-16548 lnet: Fixing missing gnilnd define CURRENT_LND_VERSION

Added missing define CURRENT_LND_VERSION for gni.
Declared kgnilnd_tunables_setup.

Test-Parameters: trivial
Signed-off-by: Frank Sehr <fsehr@whamcloud.com>
Change-Id: Ia327dcbdaa518a24a60e32b1dcb37c5b1d0dc78e
Fixes: 56097c4904 ("LU-16548 lnet: report actual timeout used by lnd")
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/51342
Reviewed-by: Chris Horn <chris.horn@hpe.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>
Reviewed-by: Shaun Tancheff <shaun.tancheff@hpe.com>
Tested-by: Maloo <maloo@whamcloud.com>
Tested-by: jenkins <devops@whamcloud.com>