Fix typo in autogen.sh
Fix typo in autogen.sh

Mention the right project name.

Signed-off-by: Pino Toscano <7f561d60bf2df812acf624afe597ba9d84c2586d@redhat.com>
Reviewed-by: Daniel P. Berrangé <bb938cf255e055ff3507f2627d214e8e62118fcf@redhat.com>

libvirt/libvirt-designer,libvirt/libvirt-designer