MSIM: Fix to update display name in subinfo record

Currently display name in subinfo record is updated from
SubscriptionInfoUpdater.java when SIM state moves to LOADED.

For the SIM cards which does not have valid EF_SPN sim file,
by the time SIM state moves to loaded, setSpnFromConfig()
not getting called and due to that default display string
of "CARD 1/2" updated in subinfo record.

To fix update valid spn name from config, call setDisplayName() once again
after SPN name updated by SIMRecords.

Change-Id: I3325cfc14e4ebd2258499fe40918898382be0830
CRs-Fixed: 1046299