qemu.test: fix cdrom test failed on some latest guest

systemd add new udev rule to prevent media eject, this commit will
disabled the udev rules before cdrom test to avoid test failed;

Signed-off-by: Xu Tian <xutian@redhat.com>
qemu.test: add step reboot guest when it resume from s3/s4

1). add step that reboot guest when it recover from s3/s4
2). update workaround_eject_time from 0s to 5s

Signed-off-by: Xu Tian <xutian@redhat.com>
qemu.test: add scenario to eject non-removeable device force

Signed-off-by: Xu Tian <xutian@redhat.com>