re-added header inlcusion for system_get_chip_id

sommersoft · tannewt · commit fe851fc15e2f · 2018-01-23T13:50:24.000-08:00
diff --git a/ports/esp8266/common-hal/microcontroller/Processor.c b/ports/esp8266/common-hal/microcontroller/Processor.c
@@ -29,6 +29,7 @@
 #include <math.h>
 
 #include "esp_mphal.h"
+#include "user_interface.h"
 
 
 float common_hal_mcu_processor_get_temperature(void) {
