[Open Crypto Project] #8: Fix lint warnings in SHA-512

[Open Crypto Project]

#8: Fix lint warnings in SHA-512
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  Reporter:  joachims  |      Owner:  joachims
      Type:  defect    |     Status:  new
  Priority:  major     |  Milestone:
 Component:  rtl       |    Version:
Resolution:            |   Keywords:
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Comment (by joachims):

 The remaing warnings are in the sha512 wrappers in the i2c_simple_novena
 core. The warnings are reassigned to Paul in #13.

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Ticket URL: <https://trac.cryptech.is/ticket/8#comment:1>
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