reduced MAX_NUM_SEGMENTS if there is no PSRAM

Author: DedeHai

wled00/FX.h

@@ -97,7 +97,11 @@ extern byte realtimeMode;           // used in getMappedPixelIndex()
   #define MAX_NUM_SEGMENTS  32
   #define MAX_SEGMENT_DATA  (20*1024) // 20k by default (S2 is short on free RAM), limit does not apply if PSRAM is available
 #else
-  #define MAX_NUM_SEGMENTS  64
+  #ifdef BOARD_HAS_PSRAM
+    #define MAX_NUM_SEGMENTS  64
+  #else
+    #define MAX_NUM_SEGMENTS  32
+  #endif
   #define MAX_SEGMENT_DATA  (64*1024) // 64k by default, limit does not apply if PSRAM is available
 #endif