iotdevkit.conf: change init_manager to systemd
iotdevkit.conf: change init_manager to systemd

Moving to systemd as default init manager for all SD card images. Note that
kernels will not work unless CONFIG_FHANDLE is set in the kernel. sysvinit
added to DISTRO_FEATURES_BACKFILL_CONSIDERED.

Signed-off-by: Brendan Le Foll <3e0e8c4069934e8b47d99704927a85c66c0ceb33@intel.com>

MCherifiOSS/meta-intel-iot-devkit