systemd: move some tools into systemd-extra-utils package
This patch attempts to split some of the extra functionality delivered
by systemd utilities from the main package into a separate package. This
allows for trimming the size of a default systemd installation down to
~7MB with all configuration features disabled. The new
systemd-extra-utils package is added to RRECOMMENDS so that by default
it will get installed into the target image.
Signed-off-by: Maciej Borzecki <maciej.borzecki@open-rnd.pl> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>