Wait until the SIM is loaded for IMS Registration

We need to wait until a sim is detected an loaded
to register for IMS Registration updates, or there
is a possibility that we will try to register for
an IMS Registration listener with an invalid
Phone Id.

Bug: 64375490
Test: Manual
Change-Id: I2f2f9c33908a1ce049f8025c1fa3f06ba4b27032