update lightd and thingsboard

guowenxue

12 hours ago a574ce7edf7f31847be882f9f08dcd1ab8e5ebe0

 project/modules/pwm.c

@@ -118,8 +118,6 @@
int init_pwm(int channel, int freq, int duty)
{
   int           rv;
   char          buf[32];
   char          path[256];

   if( (rv=export_pwm(channel, 1)) )
   {