Fix build fail of consumer unittest.

Fix build fail of consumer unittest.

When notification service build,
before unittest is commented why unittest has fail case and build error.
Fail case is resolved other patch by Jaesick.shin.
In this patch, build error is fixed.

Change-Id: Id5a588f719ae8b6eb1ac78bf987dd793da208c14
Signed-off-by: KIM JungYong <jyong2.kim@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/10699
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Chihyun Cho <ch79.cho@samsung.com>
Reviewed-by: Hun-je Yeon <hunje.yeon@samsung.com>
Reviewed-by: Uze Choi <uzchoi@samsung.com>