~ruther/vhdl-spi-2

ref: d990ecaaf7335612b4f8f2d3ed8e1bb1407a4237 vhdl-spi-2/hdl_spi d---------
d990ecaa — Rutherther 6 months ago 
feat: implement masterslave spi switch peripheral
dc0e370a — Rutherther 7 months ago 
feat: implement initial hdl_spi