scripts/vagrant: use IDE bus for Arch Linux VMs

The original image was prepared using SCSI bus.
Using IDE explicitly speeds up boot process as the
system does not have to look where to boot from.

Change-Id: Ia9f649d1c46c591135833c02ed60b3c960ad8b98
Signed-off-by: Karol Latecki <karol.latecki@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/2840
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>

scripts/vagrant/Vagrantfile

@@ -179,6 +179,12 @@ Vagrant.configure(2) do |config|
       libvirt.disk_bus = "scsi"
     end
 
+    # Run generic/arch boxes explicitly with IDE bus,
+    # otherwise boot process fails on mounting the disk
+    if (distro.include?("arch"))
+      libvirt.disk_bus = "ide"
+    end
+
     if not vmemulator.empty?
       libvirt.emulator_path = "#{vmemulator}"
       libvirt.machine_type = "pc"