meta-phosphor: dbus-sensors: Enable new service of intrusion sensor

Enable chassis intrusion sensor service file and add "i2c-tools"
to link

Tested-by: Build passed and chassis intrusion sensor value is available via dbus or redfish

(From meta-phosphor rev: f7617ee0e9302bd1fb0a23243ca378752dab1cb3)

Change-Id: I611967de369d6f7581f68480ed39acc8c35d0d9d
Signed-off-by: Qiang XU <qiang.xu@linux.intel.com>
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>