BlueSCSI_platform_RP2040: uart_init to 115200 to work through picoprobe

lib/BlueSCSI_platform_RP2040/BlueSCSI_platform.cpp

@@ -108,7 +108,7 @@ void platform_init()
 
     /* Initialize logging to SWO pin (UART0) */
     gpio_conf(SWO_PIN,        GPIO_FUNC_UART,false,false, true,  false, true);
-    uart_init(uart0, 1000000);
+    uart_init(uart0, 115200);
     g_uart_initialized = true;
     mbed_set_error_hook(mbed_error_hook);