Add frdm-mcxw71 support

tutorials/nxp/frdm-mcxw71/minimal/main.c

@@ -0,0 +1,33 @@
+// Copyright (c) 2026 Cesanta Software Limited
+// All rights reserved
+
+#include "hal.h"
+#include "mongoose.h"
+
+#define UART_DEBUG LPUART1  // MCU-Link USB serial port
+
+static void log_fn(char ch, void *param) {
+  hal_uart_write_buf(param, &ch, 1);
+}
+
+uint64_t mg_millis(void) {
+  return hal_get_tick();
+}
+
+int main(void) {
+  hal_clock_init();
+  hal_uart_init(UART_DEBUG, 115200);
+  mg_log_set_fn(log_fn, UART_DEBUG);
+
+  MG_INFO(("Initialised. CPU clock: %lu MHz", SystemCoreClock / 1000000));
+  MG_INFO(("RAM used: %zu, free: %zu", hal_ram_used(), hal_ram_free()));
+
+  for (;;) {
+    static uint64_t timer;
+    if (hal_timer_expired(&timer, 1000, hal_get_tick())) {
+      MG_INFO(("Hi from Mongoose, tick %llu", hal_get_tick()));
+    }
+  }
+
+  return 0;
+}