Correct static assert for PSQTBuckets

Author: PikaCat-OuO

src/nnue/nnue_architecture.h

@@ -48,8 +48,9 @@ constexpr IndexType LayerStacks = 16;
 // If vector instructions are enabled, we update and refresh the
 // accumulator tile by tile such that each tile fits in the CPU's
 // vector registers.
-static_assert(PSQTBuckets % 8 == 0,
-              "Per feature PSQT values cannot be processed at granularity lower than 8 at a time.");
+static_assert(
+  PSQTBuckets % 16 == 0,
+  "Per feature PSQT values cannot be processed at granularity lower than 16 at a time.");
 
 template<IndexType L1, int L2, int L3>
 struct NetworkArchitecture {