Merge branch 'feature/esp32_d2wd_support' into 'master'

ESP32-D2WD support

Support ESP32-D2WD with integrated flash in ESP-IDF.

Includes fix for https://github.com/espressif/esp-idf/issues /521

See merge request !639

diff --cc components/bootloader/src/main/bootloader_start.c
Simple merge