optimized sdot-kernel for pilediver

kernel/x86_64/sdot.c

@@ -28,9 +28,9 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #include "common.h"
 
-#if defined(BULLDOZER) || defined(PILEDRIVER)
+#if defined(BULLDOZER) 
 #include "sdot_microk_bulldozer-2.c"
-#elif defined(STEAMROLLER)
+#elif defined(STEAMROLLER) || defined(PILEDRIVER)
 #include "sdot_microk_steamroller-2.c"
 #elif defined(NEHALEM)
 #include "sdot_microk_nehalem-2.c"