systemd is not a necessary feature for libgudev anymore since we are
providing eudev as an alternative to udev
(From OE-Core rev: 3415290a6bbc34db19ed3b74e162143e593ec977)
Signed-off-by: Alejandro Hernandez <alejandro.hernandez@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>