Optimize AES-CTR for ARM Neoverse V1 and V2.

Unroll AES-CTR loops to a maximum 12 blocks for ARM Neoverse V1 and
V2, to fully utilize their AES pipeline resources.

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Optimize AES-CTR for ARM Neoverse V1 and V2.

Unroll AES-CTR loops to a maximum 12 blocks for ARM Neoverse V1 and
V2, to fully utilize their AES pipeline resources.

Improvement on ARM Neoverse V1.

Package Size(Bytes) 16 32 64 128 256 1024
Improvement(%) 3.93 -0.45 11.30 4.31 12.48 37.66
Package Size(Bytes) 1500 8192 16384 61440 65536
Improvement(%) 37.16 38.90 39.89 40.55 40.41

Change-Id: Ifb8fad9af22476259b9ba75132bc3d8010a7fdbd

Reviewed-by: Tom Cosgrove <tom.cosgrove@arm.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/22733)

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