[Merge] livecd-rootfs:xnox/lxd-add-riscv64 into livecd-rootfs:ubuntu/master

[Dimitri John Ledkov]

Dimitri John Ledkov has proposed merging livecd-rootfs:xnox/lxd-add-riscv64 into livecd-rootfs:ubuntu/master.

Commit message:
make-lxd-metadata: add riscv64 lxd architecture tag

With this in place, I can build "plain" riscv64 buildd images. (tarball, lxd.tar.gz, squashfs, but not bootable images).

See https://launchpad.net/~xnox/+livefs/ubuntu/groovy/any/+build/215619

Requested reviews:
  Ubuntu Core Development Team (ubuntu-core-dev)

For more details, see:
https://code.launchpad.net/~ubuntu-core-dev/livecd-rootfs/+git/livecd-rootfs/+merge/383712
-- 
Your team Ubuntu Core Development Team is requested to review the proposed merge of livecd-rootfs:xnox/lxd-add-riscv64 into livecd-rootfs:ubuntu/master.