LU-15367 llite: add lseek to iotrace

LU-15367 llite: add lseek to iotrace

Add iotrace messages for lseek.

Credit to Qian Yingjin <qian@ddn.com> for original patch.

Test-Parameters: trivial
Signed-off-by: Patrick Farrell <pfarrell@whamcloud.com>
Change-Id: I2beed5e80ea9a3d6278ddd40e9deb6b56754fabe
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/52004
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Sebastien Buisson <sbuisson@ddn.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>