Start logd and service managers during the 'init' trigger

Now that we mount partitions early, services can be started before the
'fs' trigger.  We therefore start the service managers as early as
possible to ensure their transports are online, without device
specific rc files needing to handle that.  We also start logd even
one step earlier to ensure that we capture all possible logd.

Bug: 89689596
Test: logging works for early services, include the servicemanagers
Change-Id: I75dbfcd26eb6fa77f002de10afd00f085c93aa07