fix delay/yield avr

[vbextreme]

fix issues #4320 delay/yield, when the yield function takes more than a millisecond the delay fails.
Only for avr.

[matthijskooijman]

Did you figure out the rebase? Or did you just start from scratch? :-)

Anyway, there's still two issues unresolved:

• You have not yet improved the commit message
• The indentation now uses, AFAICS, 8 spaces, while the original uses tabs. This means that a bunch of lines are marked as changed now, while they didn't actually change, and the indentation is no longer consistent in this file.

[vbextreme]

ok?

[matthijskooijman]

The diff looks perfect now, though the commit message shows the same message three times? I guess just the initial line might be sufficient here, combined with the diff it should be clear what the problem was and how it is fixed.

[vbextreme]

I fight with "rebase" but finally I did it.

[matthijskooijman]

Cool, looks good. @cmaglie, merge this?

[Testato]

+1