feat(dracut.conf.d): move examples into subdirectories

Instead of shipping example configuration files that need to be
installed in the right place, move those configuration files into
configuration directories. Then they can be easily installed via a
configure option. Example: `./configure --configprofile=fedora`.

diff --git a/dracut.conf.d/fedora.conf.example b/dracut.conf.d/fedora/01-dist.conf
similarity index 100%
rename from dracut.conf.d/fedora.conf.example
rename to dracut.conf.d/fedora/01-dist.conf

diff --git a/dracut.conf.d/opensuse.conf.example b/dracut.conf.d/opensuse/01-dist.conf
similarity index 100%
rename from dracut.conf.d/opensuse.conf.example
rename to dracut.conf.d/opensuse/01-dist.conf