[MacPorts] #40392: android-ndk @7b: update to 9

[MacPorts]

#40392: android-ndk @7b: update to 9
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  Reporter:  andreas@…    |      Owner:  krischik@…
      Type:  update       |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:
      Port:  android-ndk  |
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Comment (by larryv@…):

 Please also switch to RMD160 and SHA256 checksums.

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Ticket URL: <https://trac.macports.org/ticket/40392#comment:5>
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