add initramfsarchive target for aarch64

target/aarch64/Makefile

@@ -19,6 +19,11 @@ targethelp:
 	@echo 'The kernel file is: $(FW_DIR)/${TARGET_KERNEL}'
 	@echo 'The initramfs image is: ${FW_DIR}/${INITRAMFS}'
 endif
+ifeq ($(ADK_TARGET_FS),initramfsarchive)
+targethelp:
+	@echo 'The kernel file is: $(FW_DIR)/${TARGET_KERNEL}'
+	@echo "The RootFS tarball is: $(FW_DIR)/$(ROOTFSUSERTARBALL)"
+endif
 ifeq ($(ADK_TARGET_FS),initramfspiggyback)
 targethelp:
 	@echo 'The kernel+initramfs file is: $(FW_DIR)/${TARGET_KERNEL}'
@@ -47,6 +52,9 @@ endif
 ifeq ($(ADK_TARGET_FS),initramfs)
 imageinstall: kernel-install $(FW_DIR)/$(INITRAMFS) targethelp
 endif
+ifeq ($(ADK_TARGET_FS),initramfsarchive)
+imageinstall: kernel-install $(FW_DIR)/$(ROOTFSUSERTARBALL) targethelp
+endif
 ifeq ($(ADK_TARGET_FS),initramfspiggyback)
 imageinstall: createinitramfs targethelp
 endif