i40e: Fix for unexpected messaging

i40e: Fix for unexpected messaging

BugLink: http://bugs.launchpad.net/bugs/1547674
This fixes an issue where a previously removed message
has returned.  Changing the message type to dev_dbg
leaves the info, if desired, but takes it out of normal
everyday usage. Also changed call to only provide port
data when its valid and not when its not (delete case).

Change-ID: Ief6f33b915f6364c24fa8e5789c2fc3168b5e2ed
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
(cherry picked from net-next commit 730a8f8777e55912f445c2c29234d51cceb1dfc2)
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>