Port some necessary components from meta-eca to enable
controling softAP with connmanctl including connman-init-systemd
service and ap-mode-support script.

Tracked-On: EDISON-2196
Signed-off-by: Zhenming Zhao <zhenmingx.zhao@intel.com>
Signed-off-by: Fabien Rodriguez <fabienx.rodriguez@intel.com>