Loading the required kernel modules such as ledtrig-pattern via /etc/modules-load.d may introduce a race condition on some systems such as non-systemd based distros. Load the kernel modules using the builtin 'kmod load' udev command instead.
This allows feedbackd to set periodic feedback and makes usable LED devices identifiable by feedbackd.
This allows other programs (like gnome-control-center) to consume the settings schema without having to depend on the daemon itself.
Signed-off-by: Guido Günther <agx@sigxcpu.org>