Fix incorrect programmer names in board manifest files

[MCUdude]

This PR supersedes #43 and resolves incorrect programmer names for two boards.

@valeros this PR can be merged as it is, and hopefully before the next platform release.

[MCUdude]

@valeros while I'm at it, here's a minor issue that could be fixed.

• In the PIO registry, the Avrdude links point to savannah.nongnu.org, but the project has been moved to GitHub:
  • https://registry.platformio.org/tools/platformio/tool-avrdude
  • https://github.com/avrdudes/avrdude

Question: Is there a way to run Avrdude directly in the PIO command line in VSCode? Avrdude 7.1 has a vastly improved terminal mode (-t) that allows users to read, write and inspect all memories in the connected AVR interactively. Very, very useful, but I'm not sure how I can utilize the avrdude binary used by PlatformIO. If you have a neat solution to this I can recommend users of all my Arduino cores play around with Avrdude using the PIO terminal.

[valeros]

Thanks, merged!

In the PIO registry, the Avrdude links point to savannah.nongnu.org, but the project has been moved to GitHub

Thanks, will be fixed together with next package update.

Question: Is there a way to run Avrdude directly in the PIO command line in VSCode? Avrdude 7.1 has a vastly improved terminal mode (-t) that allows users to read, write and inspect all memories in the connected AVR interactively.

I guess pio pkg exec is what you need. For example:

pio pkg exec -p tool-avrdude -- avrdude --help