Add kernel option for vhost-net required for creating TAP devices.
vpp# create tap create tap: open '/dev/vhost-net': No such file or directory vpp# vpp# vpp# create tap id 1 host-if-name tap1 create tap: open '/dev/vhost-net': No such file or directory vpp#
Expected options:
CONFIG_VHOST_RING=m CONFIG_VHOST_NET=m CONFIG_VHOST_SCSI=m CONFIG_VHOST_VSOCK=m CONFIG_VHOST=m