[SSM] Fix console sample

[SSM] Fix console sample

1. Fix sample application while reading query string from console

Change-Id: I90076ad0711ce165293a4db159e5796f1b7c93ee
Signed-off-by: jk13 <jihyeok13.kim@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/347
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Uze Choi <uzchoi@samsung.com>
(cherry picked from commit 5d2e8e333eb30d38e636d329f03dda36a1189d9e)
Reviewed-on: https://gerrit.iotivity.org/gerrit/390
Reviewed-by: Sudarshan Prasad <sudarshan.prasad@intel.com>