d2: Make SELinux conditionally and simply opt out for now

* needs reorg for 4.4

Signed-off-by: bmc08gt <brandon.mcansh@gmail.com>
d2: Set selinux to permissive when we set TARGET_USE_SELINUX := true

Signed-off-by: bmc08gt <brandon.mcansh@gmail.com>
d2: disable overlays for now

Signed-off-by: bmc08gt <brandon.mcansh@gmail.com>