add .BoardConfig.mk package-file

hc

2023-05-31 43fd8d44e8182b691c8ee61d487cec02ca11afd2

1
2
# Locally computed:
sha256  bf9a17673adffcc28ff7ea18764f06136547e97bbd9edf2ec612f09b207f0659  espeak-1.48.04-source.zip