shill: cellular: Updating serving operator should update service name.

CellularCapabilityUniversalCDMA::UpdateServingOperator should update the
service name.

BUG=chromium:264937
TEST=1. Build and run unit tests.
     2. Start pseudomodem in CDMA mode. Running "connectivity show services"
        should display "Test Network" as the value for "Name" and not a generic
        name such as "CDMANetwork0"

Change-Id: I5fcad7528d8de8870befee513ec79d0a2133a801
Reviewed-on: https://gerrit.chromium.org/gerrit/63513
Reviewed-by: Ben Chan <benchan@chromium.org>
Commit-Queue: Arman Uguray <armansito@chromium.org>
Tested-by: Arman Uguray <armansito@chromium.org>
diff --git a/cellular_capability_universal_cdma.cc b/cellular_capability_universal_cdma.cc
index af148bd..925956e 100644
--- a/cellular_capability_universal_cdma.cc
+++ b/cellular_capability_universal_cdma.cc
@@ -318,6 +318,7 @@
   SLOG(Cellular, 2) << __func__;
   if (cellular()->service().get()) {
     cellular()->service()->SetServingOperator(cellular()->home_provider());
+    cellular()->service()->SetFriendlyName(CreateFriendlyServiceName());
   }
 }