Add Adafruit Feather RP2040 DVI support

https://learn.adafruit.com/adafruit-feather-rp2040-dvi/pinouts

software/include/common_dvi_pin_configs.h

@@ -88,4 +88,13 @@ static const struct dvi_serialiser_cfg not_hdmi_featherwing_cfg = {
 	.invert_diffpairs = true
 };
 
+// Adafruit Feather RP2040 DVI
+static const struct dvi_serialiser_cfg adafruit_feather_dvi_cfg = {
+	.pio = pio0,
+	.sm_tmds = {0, 1, 2},
+	.pins_tmds = {18, 20, 22},
+	.pins_clk = 16,
+	.invert_diffpairs = true
+};
+
 #endif