RandomX: added huge-pages-jit config parameter

Set to false by default, gives 0.2% boost on Ryzen 7 3700X with 16 threads, but hashrate might be unstable on Ryzen between launches. Use with caution.

src/crypto/randomx/jit_compiler_fallback.hpp

@@ -41,7 +41,7 @@ namespace randomx {
 
 	class JitCompilerFallback {
 	public:
-		JitCompilerFallback() {
+		explicit JitCompilerFallback(bool) {
 			throw std::runtime_error("JIT compilation is not supported on this platform");
 		}
 		void prepare() {}