[dovecot/core] a87eeb: *-login: Move code to login_anvil_init()

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/dovecot/core
  Commit: a87eeb418cb3776380a1e1ffa8a9127e2b181ff0
      https://github.com/dovecot/core/commit/a87eeb418cb3776380a1e1ffa8a9127e2b181ff0
  Author: Timo Sirainen <timo.sirainen at dovecot.fi>
  Date:   2017-04-10 (Mon, 10 Apr 2017)

  Changed paths:
    M src/login-common/login-common.h
    M src/login-common/main.c

  Log Message:
  -----------
  *-login: Move code to login_anvil_init()

Calling this allows plugins that need to talk to anvil make sure they have
an anvil connection even if mail_max_userip_connections=0.