wip: Add log to the uart_elementary test

Author: nordic-krch

tests/drivers/uart/uart_elementary/src/main.c

@@ -235,6 +235,7 @@ ZTEST(uart_elementary, test_uart_basic_transmission)
 ZTEST(uart_elementary, test_uart_dual_port_transmission)
 {
 	int err;
+#if 0
 	struct uart_config test_uart_config = { .baudrate = UART_BAUDRATE,
 						.parity = UART_CFG_PARITY_EVEN,
 						.stop_bits = UART_CFG_STOP_BITS_2,
@@ -256,8 +257,8 @@ ZTEST(uart_elementary, test_uart_dual_port_transmission)
 #else
 	err = uart_configure(uart_dev_aux, &test_uart_config);
 #endif
-
 	zassert_equal(err, 0, "Unexpected error when configuring UART1: %d", err);
+#endif
 
 	err = uart_irq_callback_set(uart_dev, interrupt_driven_uart_callback_main_uart);
 	zassert_equal(err, 0, "Unexpected error when setting callback for UART0 %d", err);
@@ -317,6 +318,11 @@ ZTEST(uart_elementary, test_uart_dual_port_transmission)
 			  "UART configuration mismatch error not detected");
 
 #else
+	printf("buffer: %02x %02x %02x %02x\n",
+			test_buffer[0],
+			test_buffer[1],
+			test_buffer[2],
+			test_buffer[3]);
 	for (int index = 0; index < TEST_BUFFER_LEN; index++) {
 		zassert_equal(test_buffer[index], test_pattern[index],
 			      "UART0 received data byte %d does not match pattern 0x%x != 0x%x",