Added 1GB hugepages support for Linux

src/crypto/randomx/virtual_memory.hpp

@@ -32,4 +32,5 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 void* allocExecutableMemory(std::size_t);
 void* allocLargePagesMemory(std::size_t);
+void* allocOneGbPagesMemory(std::size_t);
 void freePagedMemory(void*, std::size_t);