rockpi4-plus: add cfgfs partition

mk/image.mk

@@ -342,7 +342,7 @@ ${FW_DIR}/${GENIMAGE}: ${TARGET_DIR} kernel-package
 	@rm -rf ${FW_DIR}/temp
 	@mkdir -p ${FW_DIR}/temp
 	@$(CP) $(KERNEL) $(FW_DIR)/kernel
-	@dd if=/dev/zero of=${FW_DIR}/cfgfs.img bs=16384 count=1 $(MAKE_TRACE)
+	@dd if=/dev/zero of=${FW_DIR}/cfgfs.img bs=16384 count=1024 $(MAKE_TRACE)
 	@mkdir -p ${FW_DIR}/extlinux
 	@$(CP) $(EXTLINUX) $(FW_DIR)/extlinux
 ifeq ($(ADK_RUNTIME_FIX_PERMISSION),y)

target/aarch64/rockpi4-plus/genimage.cfg

@@ -37,4 +37,9 @@ image sdcard.img {
 		partition-type = 0x83
 		image = "rootfs.ext"
 	}
+
+	partition cfgfs {
+		partition-type = 0x88
+		image = "cfgfs.img"
+	}
 }