Avoid another copy of key schedule pointer in PROV_GCM_CTX

This copy would need an update on dupctx but
rather than doing it just remove the copy.

This fixes failures of evp_tes

Avoid another copy of key schedule pointer in PROV_GCM_CTX

This copy would need an update on dupctx but
rather than doing it just remove the copy.

This fixes failures of evp_test on Windows with
new CPUs.

Reviewed-by: Todd Short <todd.short@me.com>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/22384)

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Update copyright year

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Release: yes

AES-GCM enabled with AVX512 vAES and vPCLMULQDQ.

Vectorized 'stitched' encrypt + ghash implementation of AES-GCM enabled
with AVX512 vAES and vPCLMULQDQ instructions (available starting

AES-GCM enabled with AVX512 vAES and vPCLMULQDQ.

Vectorized 'stitched' encrypt + ghash implementation of AES-GCM enabled
with AVX512 vAES and vPCLMULQDQ instructions (available starting Intel's
IceLake micro-architecture).

The performance details for representative IceLake Server and Client
platforms are shown below

Performance data:
OpenSSL Speed KBs/Sec
Intel(R) Xeon(R) Platinum 8380 CPU @ 2.30GHz (1Core/1Thread)
Payload in Bytes 16 64 256 1024 8192 16384
AES-128-GCM
Baseline 478708.27 1118296.96 2428092.52 3518199.4 4172355.99 4235762.07
Patched 534613.95 2009345.55 3775588.15 5059517.64 8476794.88 8941541.79
Speedup 1.12 1.80 1.55 1.44 2.03 2.11

AES-256-GCM
Baseline 399237.27 961699.9 2136377.65 2979889.15 3554823.37 3617757.5
Patched 475948.13 1720128.51 3462407.12 4696832.2 7532013.16 7924953.91
Speedup 1.19 1.79 1.62 1.58 2.12 2.19
Intel(R) Core(TM) i7-1065G7 CPU @ 1.30GHz (1Core/1Thread)
Payload in Bytes 16 64 256 1024 8192 16384
AES-128-GCM
Baseline 259128.54 570756.43 1362554.16 1990654.57 2359128.88 2401671.58
Patched 292139.47 1079320.95 2001974.63 2829007.46 4510318.59 4705314.41
Speedup 1.13 1.89 1.47 1.42 1.91 1.96
AES-256-GCM
Baseline 236000.34 550506.76 1234638.08 1716734.57 2011255.6 2028099.99
Patched 247256.32 919731.34 1773270.43 2553239.55 3953115.14 4111227.29
Speedup 1.05 1.67 1.44 1.49 1.97 2.03

Reviewed-by: TJ O'Dwyer, Marcel Cornu, Pablo de Lara
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/17239)

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