Replace usage of DT_DRV_INST with instance based macros. Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
Refactor the mcp230xx driver to generically also support SPI IO expanders, renaming it to mcp23xxx in the process. Signed-off-by: Peter Johanson <peter@peterjohanson.com>