io: add support for activating TLS thread safety workaround
Add a QIO_CHANNEL_FEATURE_CONCURRENT_IO feature flag.
If this is set on a QIOChannelTLS session object, the TLS
session will be marked as requiring thread safety, which
will activate the workaround for GNUTLS bug 1717 if needed.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Link: https://lore.kernel.org/qemu-devel/20250718150514.2635338-3-berrange@redhat.com
Signed-off-by: Fabiano Rosas <farosas@suse.de>