[openssl/openssl] 2f05fe: Fix SM4-CBC regression on Armv8

[Fangming.Fang]

  Branch: refs/heads/openssl-3.1
  Home:   https://github.com/openssl/openssl
  Commit: 2f05fe946bcc57c99415eead22154d4b4855afe6
      https://github.com/openssl/openssl/commit/2f05fe946bcc57c99415eead22154d4b4855afe6
  Author: fangming.fang <fangming.fang at arm.com>
  Date:   2022-12-13 (Tue, 13 Dec 2022)

  Changed paths:
    M crypto/sm4/asm/vpsm4-armv8.pl
    M test/recipes/30-test_evp_data/evpciph_sm4.txt

  Log Message:
  -----------
  Fix SM4-CBC regression on Armv8

Fixes #19858

During decryption, the last ciphertext is not fed to next block
correctly when the number of input blocks is exactly 4. Fix this
and add the corresponding test cases.

Thanks xu-yi-zhou for reporting this issue and proposing the fix.

Reviewed-by: Tomas Mraz <tomas at openssl.org>
Reviewed-by: Paul Dale <pauli at openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19872)

(cherry picked from commit d89e0361d5ff5b32c24edac6c60c5ae38714e6c3)