Comment 18 for bug 1636847

The log message[1] says that this issues is under investigation:
> For the moment turn it off while it can be investigated.

Did we find the root cause? Seems like Debian is successfully uses it nowadays:
```
tar -xOzf linux_5.10.19-1.debian.tar.xz ./debian/config/config | fgrep CONFIG_SQUASHFS_DECOMP_MULTI_PERCPU
CONFIG_SQUASHFS_DECOMP_MULTI_PERCPU=y
```

[1] https://lists.ubuntu.com/archives/kernel-team/2016-October/080596.html