ice40/led : add mux stage and direct register drive to LED block #180

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TomKeddie wants to merge 4 commits intotimvideos:masterfrom TomKeddie:tomk_20190725_ice40led_enh

+31-13

Commits on Jul 26, 2019

platform/icebreaker: port rgb led driver from fomu

Tom Keddie
authored and
TomKeddie
committed
gateware: Create ice40 module.

mithro
authored and
TomKeddie
committed
ice40/led : add mux stage and direct register drive to LED block (ported from tomk_20190709_ice50led_enh)
TomKeddie
committed
platforms/icebreaker : reorder LEDs to match v1.0e schematic
TomKeddie
committed