Enable RSA keygen becnhmarks by default

[andrewhop]

Description of changes:

The current filter logic in the speed tool is a bit weird. It's not possible to run all the benchmarks because RSA key gen was off by default. If you pass in the filter "RSAKeyGen" you get the keygen benchmarks and all the other RSA benchmarks. This change updates it to be treated the same as all the other benchmarks.

The RSA key gen benchmarks are still a little weird because they override the timeout which is why they are slower and take more time. For now the canary use case is fine.

Testing:

The CI will run this benchmark with all the libcryptos we expect to support.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license and the ISC license.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 79.04%. Comparing base (5cdc082) to head (ae58755).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2206   +/-   ##
=======================================
  Coverage   79.04%   79.04%           
=======================================
  Files         612      612           
  Lines      106164   106222   +58     
  Branches    15003    15008    +5     
=======================================
+ Hits        83915    83964   +49     
- Misses      21594    21606   +12     
+ Partials      655      652    -3     

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