esp8266: Make APA102 driver inclusion configurable.
diff --git a/esp8266/espapa102.c b/esp8266/espapa102.c
index e5f3024..4295fe4 100644
--- a/esp8266/espapa102.c
+++ b/esp8266/espapa102.c
@@ -24,6 +24,9 @@
  * THE SOFTWARE.
  */
 
+#include "py/mpconfig.h"
+#if MICROPY_ESP8266_APA102
+
 #include <stdio.h>
 #include "c_types.h"
 #include "eagle_soc.h"
@@ -108,3 +111,5 @@
     _esp_apa102_append_additionial_cycles(clockPinMask, dataPinMask, numBytes);
     _esp_apa102_end_frame(clockPinMask, dataPinMask);
 }
+
+#endif