[openssl/openssl] 48e35b: s390x: Fix GCM setup

[openssl-machine]

  Branch: refs/heads/master
  Home:   https://github.com/openssl/openssl
  Commit: 48e35b99bd0071207cfe39da22eb2502db5c09dc
      https://github.com/openssl/openssl/commit/48e35b99bd0071207cfe39da22eb2502db5c09dc
  Author: Juergen Christ <jchrist at linux.ibm.com>
  Date:   2022-07-26 (Tue, 26 Jul 2022)

  Changed paths:
    M crypto/modes/gcm128.c

  Log Message:
  -----------
  s390x: Fix GCM setup

Rework of GCM code did not include s390x causing NULL pointer dereferences on
GCM operations other than AES-GCM on platforms that support kma.  Fix this by
a proper setup of the function pointers.

Fixes: 92c9086e5c2b ("Use separate function to get GCM functions")

Signed-off-by: Juergen Christ <jchrist at linux.ibm.com>

Reviewed-by: Paul Dale <pauli at openssl.org>
Reviewed-by: Hugo Landau <hlandau at openssl.org>
(Merged from https://github.com/openssl/openssl/pull/18862)