enable archive mode for microblaze

target/config/Config.in

@@ -871,7 +871,6 @@ config ADK_TARGET_ROOTFS_ARCHIVE
 	bool "Archive usable for different filesystems"
 	select ADK_HOST_NEED_GENEXT2FS if ADK_HARDWARE_QEMU
 	select ADK_KERNEL_EXT2_FS if ADK_HARDWARE_QEMU
-	depends on !ADK_LINUX_MICROBLAZE
 	help
 	  Use this option if your root filesystem is ext2/ext3/ext4/xfs.
 

target/microblaze/Makefile

@@ -55,3 +55,7 @@ ifneq ($(ADK_HARDWARE_QEMU),)
 	@echo 'qemu-system-${CPU_ARCH} -M $(MODEL) -nographic -kernel $(FW_DIR)/$(TARGET_KERNEL) $(DTB)'
 endif
 endif
+ifeq ($(ADK_TARGET_FS),archive)
+imageinstall: $(FW_DIR)/$(ROOTFSTARBALL)
+	@echo "The RootFS tarball is: $(FW_DIR)/$(ROOTFSTARBALL)"
+endif