cris: use Image for qemu

target/cris/Makefile

@@ -5,7 +5,7 @@ include $(ADK_TOPDIR)/rules.mk
 include $(ADK_TOPDIR)/mk/kernel-build.mk
 include $(ADK_TOPDIR)/mk/image.mk
 
-KERNEL:=$(LINUX_DIR)/arch/cris/boot/zImage
+KERNEL:=$(LINUX_DIR)/arch/cris/boot/Image
 QEMU_ARGS:=-M axis-dev88 -nographic -monitor none
 
 # target helper text