Comment 1 for bug 1911309

This kernel snap fails in uc20 on cm4, but only on armhf. It appears to have pulled in a broken firmware version, the bug for this is in https://bugs.launchpad.net/ubuntu/+source/linux-firmware-raspi2/+bug/1912385

It's also a little confusing since it passed on arm64 but that bug definitely affects both. Are we not using the same firmware in both?