On latest code from patchtest (which uses pyro branches) the following error is observed when machine is turnoff and runqemu is in the clean-up phase


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Traceback (most recent call last):
  File "/home/patchtest/patchtest-guest-v2/poky/scripts/runqemu", line 1238, in <module>
    ret = main()
  File "/home/patchtest/patchtest-guest-v2/poky/scripts/runqemu", line 1233, in main
    config.cleanup()
  File "/home/patchtest/patchtest-guest-v2/poky/scripts/runqemu", line 1146, in cleanup
    cmd = 'sudo %s %s %s' % (self.qemuifdown, self.tap, self.bindir_native)
AttributeError: 'BaseConfig' object has no attribute 'tap'
KERNEL: [tmp/deploy/images/qemux86-64/bzImage--4.9.49+git0+6acae6f720_480ee599fb-r0-qemux86-64-20171018160049.bin]
MACHINE: [qemux86-64]
FSTYPE: [ext4]
ROOTFS: [tmp/deploy/images/qemux86-64/core-image-patchtest-qemux86-64.ext4]
CONFFILE: [/home/patchtest/patchtest-guest-v2/poky/build/tmp/deploy/images/qemux86-64/core-image-patchtest-qemux86-64.qemuboot.conf]
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