tests: drivers: can: stm32: determine CAN device at compile-time

Determine the CAN device (CAN_0 or CAN_1) at compile-time.

Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>

tests/drivers/can/stm32/src/main.c

@@ -33,7 +33,13 @@
  * @}
  */
 
-
+#if defined(DT_CAN_0_NAME)
+#define CAN_NAME DT_CAN_0_NAME
+#elif defined(DT_CAN_1_NAME)
+#define CAN_NAME DT_CAN_1_NAME
+#else
+#error No CAN device available
+#endif
 
 #define TEST_SEND_TIMEOUT    K_MSEC(100)
 #define TEST_RECEIVE_TIMEOUT K_MSEC(100)
@@ -132,7 +138,7 @@ static void test_filter_handling(void)
 	int ret, filter_id_1, filter_id_2;
 	struct zcan_frame msg_buffer;
 
-	can_dev = device_get_binding(DT_CAN_1_NAME);
+	can_dev = device_get_binding(CAN_NAME);
 
 	ret = can_configure(can_dev, CAN_LOOPBACK_MODE, 0);