Comment 6 for bug 1951289

The fix above also cherry-picks back to bionic, but strangely it causes the bionic kernel to fail to boot. I don't see any kernel messages after the EFI stub. I tried adding "earlycon" to get more debug info, but that somehow avoids the problem and boots fine w/ the fix. With earlycon, I can verify that the LTP test now passes. There's just something else missing.