The OpenFlow spec forbids multiple occurences of a same instruction
type within a mod_flow message, so make sure
ofp_instruction_from_jsondict doesn't emit such an instruction set.
Signed-off-by: IWAMOTO Toshihiro <iwamoto@valinux.co.jp>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>