If procd relaunches the ModemManager daemon after e.g. a crash, we
also want it to notify all cached hotplug events, or otherwise we
would end up leaving the daemon running without the full initial
processing done.

This change modifies the init script to include all the required init
commands as part of the procd instance command, so that procd launches
all of them on every respawn.

Signed-off-by: Aleksander Morgado <aleksander@aleksander.es>