Merge pull request #641 from PandaWei/virtio-iso

virtio_driver_sign_check: Use the recommended and unified path

qemu/tests/cfg/virtio_driver_sign_check.cfg

@@ -5,10 +5,10 @@
     # So need not add to our testing loop.
     type = virtio_driver_sign_check
     cdroms += " sdk virtio"
-    cdrom_virtio = /usr/share/virtio-win/virtio-win.iso
+    cdrom_virtio = isos/windows/virtio-win.iso
     cdrom_sdk = isos/windows/GRMSDKX_EN_DVD.iso
     floppies = "fl"
-    floppy_name = "/usr/share/virtio-win/virtio-win.vfd"
+    floppy_name = images/win7-64/virtio-win.vfd
     list_files_cmd = dir /s /b %s | find "%s"
     winsdk_au3 = autoit/winsdk.au3
     signtool_install = "D:\autoit3.exe c:\winsdk.au3"