tests: drivers: build_all: sensor: add everlight,als-pt19 build test

This was missed when the driver was contributed in 8f789f8

Signed-off-by: Benjamin Cabé <benjamin@zephyrproject.org>

Author: kartben

tests/drivers/build_all/sensor/adc.dtsi

@@ -127,3 +127,9 @@ test_veaa_x_3: test_veaa_x_3 {
 	dac-resolution = <12>;
 	pressure-range-type = "D2";
 };
+
+test_als_pt19: test_als-pt19 {
+	compatible = "everlight,als-pt19";
+	io-channels = <&test_adc 0>;
+	load-resistor = <10000>;
+};