373: Add grove matrix led my-9221 driver r=eldruin a=pyaillet
Hi !
Thank you for pulling this list together.
This PR adds the [Grove matrix led driver](https://github.com/pyaillet/grove-matrix-led-my9221-rs)
Co-authored-by: Pierre-Yves Aillet <pyaillet@gmail.com>
1. [grove-matrix-led-my9221-rs] - I2C - Rust driver for Grove RGB Matrix Led with my-9221 Driver - ![crates.io](https://img.shields.io/crates/v/grove-matrix-led-my9221-rs.svg)