[MacPorts] #31605: byaccj: use the right archs

[MacPorts]

#31605: byaccj: use the right archs
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 Reporter:  ryandesign@…             |       Owner:  mww@…           
     Type:  defect                   |      Status:  new             
 Priority:  Normal                   |   Milestone:                  
Component:  ports                    |     Version:  2.0.3           
 Keywords:  haspatch                 |        Port:  byaccj          
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 byaccj should respect build_arch and add a universal variant.

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Ticket URL: <https://trac.macports.org/ticket/31605>
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