Update easysetup's security-provisioning logic.

Update easysetup's security-provisioning logic.

 - This patch indicates the method to reduce security-provisioning time
   by improving the secured-resource search process.

Change-Id: I7cb1a9be272dc92451cf5099afb55c15adeb27ec
Signed-off-by: Parkhi <h_w.park@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/12939
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Jihun Ha <jihun.ha@samsung.com>
Reviewed-by: Uze Choi <uzchoi@samsung.com>
Tested-by: Uze Choi <uzchoi@samsung.com>