added qemu_img_info_while_vm_running cases

Added three `qemu-img` lock tests.
To verify it supports to get information of a running image.
Signed-off-by: NHaotong Chen <hachen@redhat.com>

qemu_guest_agent.py: add case of checking guest agent status via qmp

Signed-off-by: Nyama <yama@redhat.com>

qemu_guest_agent.py: check the default path of fsfreeze-hook

Signed-off-by: Nyama <yama@redhat.com>

multi_nics_verify: Boot 27 NICs and all the NICs can get IPs

To test bus limitation, 27 NICs are booted. Other 5 bus addr are
occupied by other equipment.
Signed-off-by: NXiyue Wang <xiywang@redhat.com>

check_block_size: send key and restore var file for ovmf

single_driver_install: No need to switch system to ide when install storage drivers

Otherwise the installation can not proceed in ovmf interface
Signed-off-by: NQianqian Zhu <qizhu@redhat.com>

When install vioscsi and viostor drivers, switching system to ide
then install another driver, then switch it back will cause windows
crash.
Signed-off-by: NLi Jin <lijin@redhat.com>

 set_link: fix problem of packets lost during ping on windows guest

Add ip check for windows guest and extend the timeout.
Signed-off-by: NYu Wang <wyu@redhat.com>

qemu_guest_agent: Add case of hotplugging disk with frozen fs

Signed-off-by: Nyama <yama@redhat.com>

watchdog: Check watchdog with VM stop/resume

qemu_guest_gagent.py: check guest agent status after running init 3

multicast_iperf: install gcc-c++ to compile iperf for multicast

ovmf_check_efi: Check if guest boots from UEFI

vlan: enable ping test with vlan tag on windows guest

Signed-off-by: Nyama <yama@redhat.com>

Signed-off-by: NSitong Liu <siliu@redhat.com>

single_driver_install: Remove workaround

Since now we use different name for system disk between virtio-scsi
and virtio-blk, it has less chance to trigger the BSOD error, so we
can remove the previous workaround.
Signed-off-by: NXu Han <xuhan@redhat.com>

seabios_reboot_timeout: Add seabios new case

timedrift: delete redundant command for adding host load

multi_nic_stress: enlarge login_timeout and disable windows firewall

Add windows guest support for upload/download data via ipv6

ovmf: add uefishell common test

rng_hotplug: Modify plug and unplug method to adjust to pcie bus

cgroup: add case of CFS bandwidth limit

modify hotplug and hot-unplug method to support rng device plug and
unplug under pcie bus.
Signed-off-by: NLi Jin <lijin@redhat.com>

Signed-off-by: Nyama <yama@redhat.com>

rh_kernel_update: Fix a param assignment bug

Fix a param assignment bug that would lead a failure of virtio
module check on s390x.
Signed-off-by: NXu Han <xuhan@redhat.com>

Drop ntp variant

Since we will drop using ntpdate to get local time, so drop ntp
variant as well.
Signed-off-by: NSitong Liu <siliu@redhat.com>

Add reboot-timeout option test case for seabios
Signed-off-by: Nybduan <yduan@redhat.com>

Signed-off-by: NXiyue Wang <xiywang@redhat.com>