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[S390x] Replace inline assembly, fix fat filenames and add FAT_TEST_LIST

See merge request !32

[S390x] Fat build support for AES and GHASH

See merge request !31

[S390x] Optimize GHASH

See merge request !26

[AArch64] Fat build support for SHA-256 compress

See merge request !29

[AArch64] Optimize SHA-256 compress

See merge request !28

[S390x] Use uppercase for macro names in machine.m4 and enhance the documentation for GHASH implementation

(cherry picked from commit 52bacaca)

(cherry picked from commit 0ad0b5df)

Improves consistency with _rsa_sec_compute_root, and fixes zero-input bug.

(cherry picked from commit 485b5e28)

(cherry picked from commit 0a714543)

* pkcs1-sec-decrypt.c (_pkcs1_sec_decrypt): Check that message
length is valid, for given key size.
* testsuite/rsa-sec-decrypt-test.c (test_main): Add test cases for
calls to rsa_sec_decrypt specifying a too large message length.

(cherry picked from commit 7616541e)

This patch optimizes SHA1 compress function for arm64 architecture by
taking advantage of SHA-1 instructions of Armv8 crypto extension.
The SHA-1 instructions:
SHA1C: SHA1 hash update (choose)
SHA1H: SHA1 fixed rotate
SHA1M: SHA1 hash update (majority)
SHA1P: SHA1 hash update (parity)
SHA1SU0: SHA1 schedule update 0
SHA1SU1: SHA1 schedule update 1

Benchmark on gcc117 instance of CFarm before applying the patch:
         Algorithm         mode Mbyte/s
         sha1            update  214.16
         openssl sha1    update  849.44
         hmac-sha1     64 bytes   61.69
         hmac-sha1    256 bytes  131.50
         hmac-sha1   1024 bytes  185.20
         hmac-sha1   4096 bytes  204.55
         hmac-sha1   single msg  210.97

Benchmark on gcc117 instance of CFarm after applying the patch:
         Algorithm         mode Mbyte/s
              sha1       update  800.80
      openssl sha1       update  849.17
         hmac-sha1     64 bytes  166.10
         hmac-sha1    256 bytes  409.24
         hmac-sha1   1024 bytes  636.98
         hmac-sha1   4096 bytes  739.20
         hmac-sha1   single msg  775.67

[S390x] Basic AES optimization

See merge request !23