peer: fix commit a9e55d3bd75fd5dd633fee1ff2c9d45d6d6447ee reggression
peer: fix commit a9e55d3bd75fd5dd633fee1ff2c9d45d6d6447ee reggression

After became 'establish' state, we have to send update messages to the
outstanding channel in _NEW_ fsm.

Signed-off-by: FUJITA Tomonori <93dac1fe9c4b2a3957982200319981492ad4976e@lab.ntt.co.jp>

Dipsingh/gobgp,tamihiro/gobgp,postfix/gobgp,fujita/gobgp,tamihiro/gobgp,osrg/gobgp,Dipsingh/gobgp,a16/gobgp,a16/gobgp,osrg/gobgp,ramrunner/gobgp,fujita/gobgp,osrg/gobgp,a16/gobgp,postfix/gobgp,h-naoto/gobgp,ishidawataru/gobgp,YujiOshima/gobgp,a16/gobgp,fujita/gobgp,osrg/gobgp,postfix/gobgp,YujiOshima/gobgp,a16/gobgp,h-naoto/gobgp,ramrunner/gobgp,a16/gobgp,ishidawataru/gobgp,j-kato/gobgp,ramrunner/gobgp,a16/gobgp,Dipsingh/gobgp,fujita/gobgp,ishidawataru/gobgp,h-naoto/gobgp,j-kato/gobgp,tamihiro/gobgp,YujiOshima/gobgp,tamihiro/gobgp,j-kato/gobgp