Update cores/arduino/overloads.h

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: soburi

cores/arduino/overloads.h

@@ -11,5 +11,10 @@ void analogWrite(enum dacPins pinNumber, int value);
 #endif
 
 // In c++ mode, we also provide analogReadResolution and analogWriteResolution getters
+#if defined(CONFIG_ADC)
 int analogReadResolution();
+#endif
+
+#if defined(CONFIG_DAC) || defined(CONFIG_PWM)
 int analogWriteResolution();
+#endif