datapath: backport: ovs: set name assign type of internal port

datapath: backport: ovs: set name assign type of internal port

upstream commit:
    commit 684ff4ef5edd758c47929b852b4ea79be56f8bc0
    Author: Zhang Shengju <zhangshengju@cmss.chinamobile.com>

    ovs: set name assign type of internal port

    Set name_assign_type of internal port to NET_NAME_USER.

    Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
    Acked-by: Pravin B Shelar <pshelar@ovn.org>
    Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Pravin B Shelar <pshelar@ovn.org>
Acked-by: Jesse Gross <jesse@kernel.org>