Update led and pwm source code to remove compile warnning

guowenxue

2024-03-12 cbbab621e5e5d3b1407bd898544ab8b7487563a3

 modules/leds.c

@@ -107,7 +107,7 @@
        printf("initial leds gpio failure, rv=%d\n", rv);
        return 1;
    }
    printf("initial RGB Led gpios okay\n", rv);
    printf("initial RGB Led gpios okay\n");

    signal(SIGINT,  sig_handler);
    signal(SIGTERM, sig_handler);