support WLED_AUTOSEGMENTS compile flag

see wled#4183

Author: softhack007

wled00/wled.h

@@ -372,7 +372,11 @@ WLED_GLOBAL byte bootPreset   _INIT(0);                   // save preset to load
 //if true, a segment per bus will be created on boot and LED settings save
 //if false, only one segment spanning the total LEDs is created,
 //but not on LED settings save if there is more than one segment currently
+#ifdef WLED_AUTOSEGMENTS
+WLED_GLOBAL bool autoSegments    _INIT(true);
+#else
 WLED_GLOBAL bool autoSegments    _INIT(false);
+#endif
 WLED_GLOBAL bool correctWB       _INIT(false); // CCT color correction of RGB color
 WLED_GLOBAL bool cctFromRgb      _INIT(false); // CCT is calculated from RGB instead of using seg.cct
 WLED_GLOBAL bool gammaCorrectCol _INIT(true ); // use gamma correction on colors // WLEDMM that's what you would think, but the code tells a different story.