add sse4.1 for DYNAMIC_ARCH kernels

Author: martin-frbg

kernel/Makefile

@@ -45,7 +45,7 @@ endif
 
 ifdef TARGET_CORE
 	ifeq ($(TARGET_CORE), $(filter $(TARGET_CORE),PRESCOTT CORE2 PENRYN DUNNINGTON ATOM NANO SANDYBRIDGE HASWELL NEHALEM ZEN BARCELONA BOBCAT BULLDOZER PILEDRIVER EXCAVATOR STEAMROLLER OPTERON_SSE3))
-	override CFLAGS += -msse3 -mssse3
+	override CFLAGS += -msse3 -mssse3 -msse4.1
 endif
 ifeq ($(TARGET_CORE), COOPERLAKE)
  override CFLAGS += -DBUILD_KERNEL -DTABLE_NAME=gotoblas_$(TARGET_CORE)