Add Adafruit esp32s2 boards with custom bootloader, partition and upload.extra_flags#5056

Merged

me-no-dev merged 4 commits intoespressif:masterfrom

adafruit:add-boards-with-tinyuf2

Apr 15, 2021

Commits on Apr 13, 2021

cherry pick changes for custom bootloader, partition and upload.extra_flags
hathach
committed

Commits on Apr 14, 2021