3.7.3
use sha384_digest in lib/accelerated/aarch64/sha-aarch64.c sha384
accelerated: fix CPU feature detection for Intel CPUs
afalg: use pkg-config to detect libkcapi
Align _gnutls_x86_cpuid_s as OPENSSL_ia32cap_P would be
accelerated: added header guards
afalg: support AES-XTS algorithms
Add AF_ALG acceleration
lib: add support for AES-192-GCM
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