Public bug reported:

On certain arm64 platforms, modules will not load. This doesn't impact any 
certified hardware to date, but is known to impact some pre-release platforms, 
as well as QEMU when a virtio-rng-pci device is attached.

[Test Case]
On a xenial/arm64 host, run:

sudo apt install qemu-system-arm qemu-efi
cp /usr/share/AAVMF/AAVMF_CODE.fd flash0.img
cp /usr/share/AAVMF/AAVMF_VARS.fd flash1.img
sudo qemu-system-aarch64 -enable-kvm -m 2048 -cpu host -M virt,gic_version=host 
-nographic -pflash flash0.img -pflash flash1.img -drive 
file=mini.iso,id=cdrom,if=none,media=cdrom -device virtio-scsi-device -device 
scsi-cd,drive=cdrom -device virtio-rng-pci

Select Install from the GRUB menu, and continue through the installer
menus to "Detect network hardware".

On failure, the installer will report 'Error while running "modprobe -v
-b usb-storage"'. On success, it'll continue through to the network
configuration screens.

[Regression Risk]
This will be a simple cherry pick from upstream, so we'll have upstream support 
w/ any regressions.

** Affects: linux (Ubuntu)
     Importance: High
     Assignee: dann frazier (dannf)
         Status: In Progress

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  arm64: KASLR breaks MODVERSIONS

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