[Crypto] enable ADX support by default

[tarakby]

BLST library uses ADX instructions to speed up computations. It implements software versions with and without ADX instructions. It uses the ADX version by default, but provides a CGO flag to use the non-ADX version when compiled by Go.
Using the flag is necessary for machines without ADX support.

So far the crypto lib was using the CGO flag by default to disable ADX. This PR switches the default to use ADX to benefit from the performance speed up. In order for tests and builds to work with older machines (without ADX), all makefiles have been updated to detect ADX support and add the CGO flag accordingly.

• all Makefile detect ADX support and assign a new CGO flag to empty or no-ADX flag.
• The new CGO flag is used by all Go commands, passed as argument to all Dockerfiles.

[codecov-commenter]

Codecov Report

Merging #4405 (f0b49e7) into feature/blst-based-crypto (01b64c5) will not change coverage.
The diff coverage is n/a.

@@                    Coverage Diff                     @@
##           feature/blst-based-crypto    #4405   +/-   ##
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  Coverage                      53.71%   53.71%           
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  Files                            857      857           
  Lines                          79948    79948           
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  Hits                           42941    42941           
- Misses                         33610    33611    +1     
+ Partials                        3397     3396    -1     

Flag	Coverage Δ
unittests	53.71% <ø> (ø)

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see 9 files with indirect coverage changes