Babystep delay 2us

[thinkyhead]

• Address Babystepping does not work with DRV8825 stepper drivers #1900 – give enough delay for DRV8825 steps in babystep function

[clefranc]

My delta have these DRV8825, printing with #1923 right now, so far so good, but I'm a slow printer, don't know if I'll see any differences, still smooth and precise. Print speed is currently 30mm/s, non-print moves at 150mm/s.

[thinkyhead]

@clefranc Good news. I can't imagine an extra 1,000,000th of a second will be that noticeable, until a few million steps have happened.