tests: drivers: watchdog: wdt_basic_api: add support for nucleo_h753zi

- add watchdog0 node alias
- remove redundant nucleo_h753zi

Signed-off-by: Fabrice DJIATSA <[email protected]>

Author: djiatsaf-st

boards/st/nucleo_h753zi/nucleo_h753zi.dts

@@ -63,6 +63,7 @@
 		pwm-led0 = &red_pwm_led;
 		sw0 = &user_button;
 		volt-sensor1 = &vbat;
+		watchdog0 = &iwdg;
 	};
 };
 
@@ -272,3 +273,7 @@ zephyr_udc0: &usbotg_fs {
 		};
 	};
 };
+
+&iwdg1 {
+	status = "okay";
+};

tests/drivers/watchdog/wdt_basic_api/testcase.yaml

@@ -87,7 +87,6 @@ tests:
       - nucleo_wl55jc
       - b_u585i_iot02a
       - nucleo_u575zi_q
-      - nucleo_h753zi
       - nucleo_h743zi
       - nucleo_c031c6
       - nucleo_h753zi