Fix LLCC68 initialization when using fast CPUs

Author: grishenko

src/SX126x_driver.cpp

@@ -23,6 +23,7 @@ void sx126x_reset(int8_t reset)
  digitalWrite(reset, LOW);
  delayMicroseconds(500);
  digitalWrite(reset, HIGH);
+ delayMicroseconds(100);
 }
 
 void sx126x_begin()