Asyncify flush#13

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jacobrosenthal wants to merge 7 commits intorust-embedded-community:masterfrom

jacobrosenthal:async

Commits on Nov 15, 2021

async test
jacobrosenthal
committed

Commits on Nov 16, 2021

bmp example block_on flush_async
jacobrosenthal
committed

Commits on Nov 20, 2021

Commits on Nov 22, 2021

fix stm32f1 memory.x
jacobrosenthal
committed

Commits on May 22, 2022

update for embedded-hal-async and embassy
jacobrosenthal
committed