only update carrierid from updated esim profile if there is no valid id

since esim profile metadata doesn't support IMSI, carrier id identified
here might not be accurate for carriers who differentiate themselves
by IMSI prefix. Prioritize carrier id from CarrierResolver and only update if
there is no valid carrier id present.

Bug: 134440411
Test: Manaul test
Change-Id: Ief3a7e42e9a78d9c4e4125efbb9aac15607de4a7