Update qemu-dm path for Xen-4.4

Signed-off-by: Si Beaumont <simon.beaumont@citrix.com>
Merge pull request #84 from simonjbeaumont/qemu-dm-path

Update qemu-dm path for Xen-4.4
CA-140004: qemu cancel paths should be domain-local

There were being made with respect to the backend domain
which is usually 0.

Signed-off-by: Jon Ludlam <jonathan.ludlam@citrix.com>
Merge pull request #85 from jonludlam/CA-140004

CA-140004: qemu cancel paths should be domain-local
Merge commit 'e579e0415ac07fbd9cba0ca93b931e276a73423e'