Explicitly install kmod to libvirt image

Change-Id: I87fbe0abdabf4468977e7665fa99fdd6aad0452e

libvirt/ubuntu-install-libvirt.sh

@@ -17,7 +17,8 @@ apt-get install --no-install-recommends -y \
   qemu \
   qemu-block-extra \
   qemu-efi \
-  openvswitch-switch ;\
+  openvswitch-switch \
+  kmod ;\
 groupadd -g ${GID} ${PROJECT} ;\
 useradd -u ${UID} -g ${PROJECT} -M -d /var/lib/${PROJECT} -s /usr/sbin/nologin -c "${PROJECT} user" ${PROJECT} ;\
 mkdir -p /etc/${PROJECT} /var/log/${PROJECT} /var/lib/${PROJECT} /var/cache/${PROJECT} ;\