[MacPorts] #38275: boost: update to 1.53

[MacPorts]

#38275: boost: update to 1.53
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 Reporter:  ryandesign@…  |      Owner:  adfernandes@…
     Type:  update        |     Status:  new
 Priority:  Normal        |  Milestone:
Component:  ports         |    Version:
 Keywords:                |       Port:  boost
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 boost should probably be updated to 1.53; #38274 mentions that boost 1.52
 has some problems that are resolved in 1.53.

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Ticket URL: <https://trac.macports.org/ticket/38275>
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