dt-bindings: trivial: add various mcp4017/18/19 potentiometers

They come in 5 kOhm, 10 kOhm, 50 kOhm and 100 kOhm variations.

Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Rob Herring <robh@kernel.org>
1 file changed