packaging: spec: depends on python-lxml
packaging: spec: depends on python-lxml

Added dep on python-lxml: it's needed also for unit testing.

Change-Id: I2a356c1dacfd1ca9c366ba45eddf117abdbeed44
Signed-off-by: Sandro Bonazzola <fcb014d63786651910af5db2ecc5316c668188ef@redhat.com>

oVirt/ovirt-image-uploader,oVirt/ovirt-image-uploader,oVirt/ovirt-image-uploader