schema: add .PHONY to validate

Signed-off-by: zhouhao <zhouhao@cn.fujitsu.com>

Author: zhouhao

schema/Makefile

@@ -10,6 +10,7 @@ help:
 fmt:
 	for i in *.json ; do jq --indent 4 -M . "$${i}" > xx && cat xx > "$${i}" && rm xx ; done
 
+.PHONY: validate
 validate: validate.go
 	go get -d ./...
 	go build ./validate.go