FS-10167: Small fix to the simclist.c assertion guards after having copied the…

FS-10167: Small fix to the simclist.c assertion guards after having copied the latest from the source git again in the last patch.

libs/libks/src/simclist.c

@@ -45,8 +45,10 @@
 
 /* disable asserts */
 #ifndef SIMCLIST_DEBUG
+#ifndef NDEBUG
 #define NDEBUG
 #endif
+#endif
 
 #include <assert.h>