performance: improve pool handling

Related-To: NEO-11731
Signed-off-by: Michal Mrozek <michal.mrozek@intel.com>

shared/source/dll/options_dll.cpp

@@ -6,6 +6,7 @@
  */
 
 #include <cstdint>
+#include <stddef.h>
 
 namespace NEO {
 // AUB file folder location
@@ -13,4 +14,7 @@ const char *folderAUB = ".";
 
 // Initial value for HW tag
 uint32_t initialHardwareTag = 0;
+
+size_t defaultPoolSize = 16777216u;
+
 } // namespace NEO