fixed dependency for pca9685 component (#2614)

Co-authored-by: Otto Winter <otto@otto-winter.com>
Co-authored-by: Andreas <andreas.hergert@otrs.com>

esphome/components/pca9685/pca9685_output.cpp

@@ -1,6 +1,7 @@
 #include "pca9685_output.h"
 #include "esphome/core/log.h"
 #include "esphome/core/helpers.h"
+#include "esphome/core/hal.h"
 
 namespace esphome {
 namespace pca9685 {