LU-9919 lnet: safe access in debug print

Move debug print within the cpt lock to keep
peer access safe.

Test-Parameters: trivial
Signed-off-by: Amir Shehata <amir.shehata@intel.com>
Change-Id: Ic37ff0973367b3eb9cbc0059ffee9c31ecf98c34
Reviewed-on: https://review.whamcloud.com/28771


Tested-by: Jenkins
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: James Simmons <uja.ornl@yahoo.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>