tests: drivers: build_all: w1: Add zephyr,w1-serial to build test

Add configuration for `zephyr,w1-serial` to enable build test

(cherry picked from commit 0845fbd)

Original-Signed-off-by: TOKITA Hiroshi <tokita.hiroshi@gmail.com>
GitOrigin-RevId: 0845fbd
Cr-Build-Id: 8732659221460854369
Cr-Build-Url: https://cr-buildbucket.appspot.com/build/8732659221460854369
Copybot-Job-Name: zephyr-main-copybot-downstream
Change-Id: Id71cc98d6fe326b86576058d5acf86bceb01f3ed
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/zephyr/+/5976023
Tested-by: ChromeOS Prod (Robot) <chromeos-ci-prod@chromeos-bot.iam.gserviceaccount.com>
Commit-Queue: Ting Shen <phoenixshen@chromium.org>
Reviewed-by: Ting Shen <phoenixshen@chromium.org>

tests/drivers/build_all/w1/app.overlay

@@ -28,6 +28,19 @@
 			gpios = <&test_gpio 0 0>;
 		};
 
+		test_uart: uart@55556666 {
+			compatible = "vnd,serial";
+			reg = <0x55556666 0x1000>;
+			status = "okay";
+
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			test_uart_w1_serial: w1_serial {
+				compatible = "zephyr,w1-serial";
+			};
+		};
+
 		test_i2c: i2c@11112222 {
 			#address-cells = <1>;
 			#size-cells = <0>;