This fix the previous limit of 64 APA102 leds, because of too short end frame. Now the end frame is computed accordling to this documentation: https://cpldcpu.wordpress.com/2014/11/30/understanding-the-apa102-superled/. Tested on my 98 leds, it works fine.
I suggest to modify hyperion to allow LED drivers to apply the brightness parameter because APA102 has a parameter for that, without the need to elaborate RGB color to simulate it (result is wrong colors!). Is it possible to introduce such parameter in LED drivers and let the driver apply that?
Former-commit-id: 2d714e6eb075ec57e0973839fe96d2d7a051c57f
