Update D spice symbol
Fixes: #3258
Adds a generic diode model into our *.sp file and points the updated diode to it.
Also updates the v8 kicad variable in a few more places.
Fixes: #3258
Adds a generic diode model into our *.sp file and points the updated diode to it.
Also updates the v8 kicad variable in a few more places.