Skip "PRE_DIAL_WAIT" when no accounts are available to chose from.

Go straight into "CONNECTING" state when no account is preset and there
are no available accounts to select from (for example if it is a SIP
call and no SIP accounts are registered). The InCallUi will handle
disconnecting the call and displaying an error message.

Bug: 17486242

Change-Id: Ieaa89c908caab15811d4708f76fe674bd96900b8