Install qemu-kvm instead of kvm package on Ubuntu

Since at least 12.04, the kvm package is a transitional dummy
package intended to move users to the newer qemu-kvm package.  This
removes the dependency on this dummy package, which will be going away
in 14.04, and instead depends on the proper qemu-kvm package.

Change-Id: I4a88ada3cf32106413a9fae6fe77c9c4c28a524e
Closes-bug: #1294557
diff --git a/lib/nova_plugins/functions-libvirt b/lib/nova_plugins/functions-libvirt
index adffe01..1f2b239 100644
--- a/lib/nova_plugins/functions-libvirt
+++ b/lib/nova_plugins/functions-libvirt
@@ -18,7 +18,7 @@
 # Installs required distro-specific libvirt packages.
 function install_libvirt {
     if is_ubuntu; then
-        install_package kvm
+        install_package qemu-kvm
         install_package libvirt-bin
         install_package python-libvirt
         install_package python-guestfs