Merge branch 'bugfix/restful_server_make_flash' into 'master'

examples/restful_server: fix Makefile syntax for flashing SPIFFS

Closes IDFGH-1841

See merge request espressif/esp-idf!6263

examples/protocols/http_server/restful_server/Makefile

@@ -7,7 +7,8 @@ include $(IDF_PATH)/make/project.mk
 ifdef CONFIG_EXAMPLE_WEB_DEPLOY_SF
 WEB_SRC_DIR = $(shell pwd)/front/web-demo
 ifneq ($(wildcard $(WEB_SRC_DIR)/dist/.*),)
-$(eval $(call spiffs_create_partition_image,www,$(WEB_SRC_DIR)/dist,FLASH_IN_PROJECT))
+SPIFFS_IMAGE_FLASH_IN_PROJECT := 1
+$(eval $(call spiffs_create_partition_image,www,$(WEB_SRC_DIR)/dist))
 else
 $(error $(WEB_SRC_DIR)/dist doesn't exist. Please run 'npm run build' in $(WEB_SRC_DIR))
 endif