Merge branch 'bugfix/secure_boot_v2_key_gen_py3' into 'master'

esptool: Update submodule fixing Py3 keygen in Secure boot v2

Closes IDFGH-3887

See merge request espressif/esp-idf!10157
This commit is contained in:
Angus Gratton
2020-08-27 08:50:01 +08:00