package/ibm-sw-tpm2: fix build with OpenSSL 4.{0, 1}

Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
Cc: Philippe Reynes <philippe.reynes@softathome.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/ibm-sw-tpm2/0002-tpm-Update-to-OpenSSL-4.1.patch

@@ -0,0 +1,28 @@
+From 66921ee5ba05ffb92700b00f17cf1e8b75522aee Mon Sep 17 00:00:00 2001
+From: Bernd Kuhls <bernd@kuhls.net>
+Date: Sun, 13 Sep 2026 11:11:24 +0200
+Subject: [PATCH] tpm: Update to OpenSSL 4.1
+
+Upstream: https://github.com/kgoldman/ibmswtpm2/pull/24
+
+Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
+---
+ src/BnToOsslMath.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/BnToOsslMath.h b/src/BnToOsslMath.h
+index 731957e..345d29f 100644
+--- a/src/BnToOsslMath.h
++++ b/src/BnToOsslMath.h
+@@ -77,7 +77,7 @@
+ #include <openssl/ec.h>
+ #include <openssl/bn.h>
+ 
+-#if OPENSSL_VERSION_NUMBER >= 0x30600ff0L
++#if OPENSSL_VERSION_NUMBER >= 0x40100ff0L
+ // Check the bignum_st definition against the one below and either update the
+ // version check or provide the new definition for this version.
+ #  error Untested OpenSSL version
+-- 
+2.47.3
+