snap 2.47.1 build issue

[Rui Chen]

:wave:, trying to build the latest release, but run into some issue, here is the error log:

```
==> go build -trimpath -o /usr/local/Cellar/snap/2.47.1/bin/snap ./cmd/snap
# github.com/snapcore/snapd/vendor/github.com/canonical/go-tpm2
vendor/github.com/canonical/go-tpm2/tpm.go:485:16: undefined: OpenTPMDevice
# github.com/snapcore/snapd/bootloader/efi
bootloader/efi/efi.go:56:17: undefined: osutil.LoadMountInfo
# github.com/snapcore/snapd/osutil/disks
osutil/disks/disks.go:173:17: undefined: osutil.LoadMountInfo
```

full build log, https://github.com/Homebrew/homebrew-core/runs/1349956834
relates to https://github.com/Homebrew/homebrew-core/pull/64066

[Graham Morrison (morrisong)]

Thanks for filing this. I've switched the assigned project to snapcraft because this snap homebrew formula is used by Snapcraft on macOS.

[Rui Chen (chenrui333)]

thanks, it caused the two upgrade failures in a row:
2.47.1, https://github.com/Homebrew/homebrew-core/pull/64066
2.48, https://github.com/Homebrew/homebrew-core/pull/65236

Let me know if you need more info from my side.

[Sergio Schvezov (sergiusens)]

Seems something like this is needed now:
https://github.com/snapcore/snapd/runs/1445934332#step:6:2

      go build -tags nosecboot -o /tmp/snp github.com/snapcore/snapd/cmd/snap

This however is still a snapd issue.

[Rui Chen (chenrui333)]

snap 2.48.2 PR, https://github.com/Homebrew/homebrew-core/pull/67238
run log, https://github.com/Homebrew/homebrew-core/runs/1580691635