modified SConscript for building arduino with tcp

modified SConscript for building arduino with tcp

Since arduino with WIFI shield does not support tcp,
build script should be closed expectedly.

Change-Id: Icad92654355153574ed5928922164366271946ec
Signed-off-by: Jaewook Jung <jw0213.jung@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/12193
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Habib Virji <habib.virji@samsung.com>
Reviewed-by: Abhishek Sharma <ce.abhishek@samsung.com>
Reviewed-by: Ashok Babu Channa <ashok.channa@samsung.com>