rename gpio.c to gpiod.c for it will conflict with rpi gpio command

guowenxue

2021-11-03 f696e95a01ee103605a9ed5fd23de58847ab9abc

 lightd/hal/tsl2561.c

@@ -12,8 +12,6 @@
 *                 
 ********************************************************************************/

#include <wiringPi.h>
#include <wiringPiI2C.h> 
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
@@ -187,6 +185,7 @@

OUT:
    tsl2561_power(OFF);
    return lux;
}