arm64, armhf and armel autopkgtest-virt-qemu

[Ryutaroh Matsumoto <ryutaroh@ict.e.titech.ac.jp>]

Hi everyone,

Conventionally autopkgtest-virt-qemu has been unavailable for
arm64, armhf and armel ports. Unofficial VM images and patch to
autopkgtest latest upstream git source are posted at
http://153.240.174.134:64193/autopkgtest-VM/
which make autopkgtest available for arm64, armhf and armel guest VMs.

I hope they are useful for ARM porting activities...

Best regards, Ryutaroh Matsumoto