[IOT-2830] add PSK callback logging
[IOT-2830] add PSK callback logging

See JIRA IOT-2830 for more information.

Change-Id: If043f6705ccdede4630b469c13e1933a2b53af16
Signed-off-by: Nathan Heldt-Sheller <214cad4ab375dc179217f558f8b9854a693faf7f@intel.com>

iotivity/iotivity,iotivity/iotivity,rzr/iotivity,rzr/iotivity,rzr/iotivity,rzr/iotivity,iotivity/iotivity,iotivity/iotivity,iotivity/iotivity,iotivity/iotivity,iotivity/iotivity,rzr/iotivity,iotivity/iotivity,rzr/iotivity,rzr/iotivity