qemu.tests: add scenario '1 0' in test loop

Add missed test scenario '1 0', AKA "indirect_desc on, event_idx off" test;

Signed-off-by: Xu Tian <xutian@redhat.com>
qemu.tests: fix duplicate properites for device

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