dbus: mask the dbus-1 init script if using systemd
If the image is built with both systemd and sysvinit there'll be a dbus-1 init
script and a dbus service. This means systemd can try and launch both, which
won't work.
There's a systemctl mask to stop this in systemd-compat-units, but the logical
place for it to be is in the dbus recipe so it can't be left out of an image.
Signed-off-by: Ross Burton <ross.burton@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
