Suppress service start timeout for services within system server,

until PHASE_THIRD_PARTY_APPS_CAN_START, to avoid TelecomService
triggering an (superficial) ANR.

Bug: 34123235
Test: 1) Boot 2) Add Thread.sleep(30_0000) before Looper.loop() in SystemServer and make sure
telecom won't trigger the ANR

Change-Id: Ic49535f3edb4225a27a708550f9e5325f03170fb