build-vm: spare all gettys on e2k

It has no VM hypervisor so far, the images are intended
for bare metal execution.

features.in/build-vm/image-scripts.d/04-inittab

@@ -1,4 +1,6 @@
 #!/bin/sh -e
 # we don't need no extra gettys in VMs
 [ -s /etc/inittab ] || exit 0
+# ...except when it's a real disk image, not a VM for sure
+[ `arch` = e2k ] && exit 0
 sed -i 's,^[3-9]\+:[0-9]\+:respawn:/sbin/mingetty.*,#&,' /etc/inittab