Virtio_packed: add new test scenarios of driver packed attribute

[meinaLi]

Automate VIRT-293723 - [packed] Start vm with virtio packed attribute and check the bit. After discussion, we don't need to add the checkpoint of bit. Also because this attribute have already been covered in some devices but not filesystem, video and others. So I covered all them directly in the previous test script.

[meinaLi]

# avocado run --vt-type libvirt --vt-machine-type q35 --test-runner=runner virtio_attributes.virtio_page_per_vq
JOB ID     : 00954afbda4655523ff1ee6f29b5588ad809e215
JOB LOG    : /root/avocado/job-results/job-2024-08-27T23.04-00954af/job.log
 (01/21) type_specific.io-github-autotest-libvirt.virtio_attributes.virtio_page_per_vq.disk.default_start: PASS (27.29 s)
 (02/21) type_specific.io-github-autotest-libvirt.virtio_attributes.virtio_page_per_vq.disk.hotplug: PASS (28.49 s)
 (03/21) type_specific.io-github-autotest-libvirt.virtio_attributes.virtio_page_per_vq.controller.scsi.default_start: PASS (28.14 s)
......
 (18/21) type_specific.io-github-autotest-libvirt.virtio_attributes.virtio_page_per_vq.input.passthrough.hotplug: PASS (27.90 s)
 (19/21) type_specific.io-github-autotest-libvirt.virtio_attributes.virtio_page_per_vq.video.default_start: PASS (27.44 s)
 (20/21) type_specific.io-github-autotest-libvirt.virtio_attributes.virtio_page_per_vq.filesystem.default_start: PASS (29.71 s)
 (21/21) type_specific.io-github-autotest-libvirt.virtio_attributes.virtio_page_per_vq.filesystem.hotplug: PASS (30.08 s)
RESULTS    : PASS 21 | ERROR 0 | FAIL 0 | SKIP 0 | WARN 0 | INTERRUPT 0 | CANCEL 0
JOB HTML   : /root/avocado/job-results/job-2024-08-27T23.04-00954af/results.html
JOB TIME   : 619.95 s

[meinaLi]

@dzhengfy Can you help review this PR? Thanks.