mxs: reinstate rootfs image creation and dtb copy

Signed-off-by: Harald Geyer <harald@ccbib.org>
Acked-by: Michael Heimpold <mhei@heimpold.de>

SVN-Revision: 45369

target/linux/mxs/image/Makefile

@@ -9,6 +9,9 @@ include $(TOPDIR)/rules.mk
 include $(INCLUDE_DIR)/image.mk
 include $(INCLUDE_DIR)/host.mk
 
+BOARDS:= \
+	imx23-olinuxino \
+	imx28-duckbill
 FAT32_BLOCK_SIZE=1024
 FAT32_BLOCKS=$(shell echo $$(($(CONFIG_MXS_SD_BOOT_PARTSIZE)*1024*1024/$(FAT32_BLOCK_SIZE))))
 
@@ -72,6 +75,7 @@ endef
 define Image/Build
 	$(call Image/Build/$(1),$(1))
 	$(call Image/Build/Profile/$(PROFILE),$(1))
+	dd if=$(KDIR)/root.$(1) of=$(BIN_DIR)/$(IMG_PREFIX)-root.$(1) bs=128k conv=sync
 endef
 
 $(eval $(call BuildImage))