LU-18004 ptlrpc: shrink timeout using MIN and not MAX value

LU-18004 ptlrpc: shrink timeout using MIN and not MAX value

Change import_select_connection() to correctly use
CONNECTION_SWITCH_MIN.

When trying to set a small timeout for quick connection tests
patch v2_15_61-238-g94d05d0737 wrongly used CONNECTION_SWITCH_MAX
instead of CONNECTION_SWITCH_MIN.

Fixes: 94d05d0737 ("LU-17379 mgc: try MGS nodes faster")
Signed-off-by: Aurelien Degremont <adegremont@nvidia.com>
Change-Id: Ia85eac787441d7bef6fd47b083060bf14a8f9a31
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/55639
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Mikhail Pershin <mpershin@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>