Map 32bit ZEN to NEHALEM rather than old BARCELONA

Author: martin-frbg

Makefile.system

@@ -194,7 +194,7 @@ ifeq ($(TARGET_CORE), EXCAVATOR)
 GETARCH_FLAGS := -DFORCE_BARCELONA
 endif
 ifeq ($(TARGET_CORE), ZEN)
-GETARCH_FLAGS := -DFORCE_BARCELONA
+GETARCH_FLAGS := -DFORCE_NEHALEM
 endif
 endif