Send STK Service Running RIL Request after sim module is ready

Currently "STK Service Running" is sent as soon as phone app is
started. And depending on the timing of vendor RIL initialization
the event may not be handled. This patch waits for SIM_READY,
RUIM_READY or NV_READY indicating vendor's SIM (equivalent) module
become ready to process the event.

Change-Id: I4182a5413201f11856989664c8f19ae1eca48e2f