gnupg + TPM 2.0 support request

[NIIBE Yutaka]

Hello,

sergio borghese wrote:
> 2023-12-10 16:46:24 gpg-agent[358316] DBG: chan_11 <- ERR 268435731 Unknown
> IPC command <TPM2d>

This is no harm.  TPM2d doesn't support GETINFO command.

> 2023-12-10 16:46:30 gpg-agent[358316] updating regular key file
> '/home/netresults.wintranet/borghese/gpg2.tmp/private-keys-v1.d/FDEE0860BCFCE24C29738F1ADBF42D4C7D95516B.key'
> by a shadow key inhibited

I fixed this problem in the repo of GnuPG 2.4/master, I suppose.  It's
the commit 9909f622f for 2.4.

The check was introduced (by the commit a1015bf2f) (in GnuPG 2.4.2),
which caused the problem for KEYTOTPM handling of gpg-agent.  Then fixed
in repo (will be in GnuPG 2.4.4).
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