ref #11, #18, #26 : fix CACHE_LINE_SIZE constant

ggml.c

@@ -181,9 +181,9 @@ int64_t ggml_cycles_per_ms(void) {
 //
 
 #if defined(__cpp_lib_hardware_interference_size)
-	const size_t CACHE_LINE_SIZE = hardware_destructive_interference_size;
+#define CACHE_LINE_SIZE hardware_destructive_interference_size
 #else
-	const size_t CACHE_LINE_SIZE = 64;
+#define CACHE_LINE_SIZE 64
 #endif
 
 const size_t CACHE_LINE_SIZE_F32 = CACHE_LINE_SIZE/sizeof(float);