Update refresh rate for 2.9 Inch v2 e-paper#150

caemor merged 4 commits intocaemor:maincaemor/epd-waveshare:mainfrom

andber1:feature/epd2in9v2_refresh_ratesandber1/epd-waveshare:feature/epd2in9v2_refresh_ratesCopy head branch name to clipboard