Android Things promotes the SoM approach to bridge that gap: https://youtu.be/sjpNek_7z-I?t=18m18s (further explained here https://www.youtube.com/watch?v=W6Q8MCyuIks ).
Disclosure: I work on Android Things.
Disclosure: I work on Android Things.
Having said that, there's a bigger market for micro controllers imo - which probably doesn't fit in to this strategy at all. There used to be Weave (RIP- which also makes one cautious about Android Things) - and there's Zephyr (kinda similar, but not really) - but no clear winners here yet.