linux-azure: CONFIG_TCG_VTPM_PROXY=m

[Simon Déziel]

On GitHub-hosted action Runners, after installing `linux-modules-extra-$(uname -r)"`, the tpm_vtpm_proxy cannot be loaded as it is missing:

modprobe -b tpm_vtpm_proxy: exit status 1 (modprobe: FATAL: Module tpm_vtpm_proxy not found in directory /lib/modules/5.15.0-1041-azure)

This was further confirmed with:

$ wget -qO - https://packages.ubuntu.com/jammy-updates/amd64/linux-modules-extra-5.15.0-1042-azure/filelist | grep -F tpm_vtpm_proxy.ko
# nothing

Yet, that same module is available for the GCP kernel flavor:

$ wget -qO - https://packages.ubuntu.com/jammy-updates/amd64/linux-modules-extra-5.15.0-1038-gcp/filelist | grep -F tpm_vtpm_proxy.ko
/lib/modules/5.15.0-1038-gcp/kernel/drivers/char/tpm/tpm_vtpm_proxy.ko