Fix CellularCapabilityUniversalMainTest.UpdateStorageIdentifier on Clang

Also disabled CellularTest.ConnectAddsTerminationAction on Clang for now
since it crashes (bug: crosbug.com/39351)

BUG=chromium-os:28749, chromium-os:30434, chromium-os:39351
TEST=Run USE="clang asan" FEATURES="test" emerge-amd64-generic -v shill
     Run USE="clang asan" FEATURES="test" emerge-x86-generic -v shill

Change-Id: I223bf423a8f6585b76d1b9dd441c9b8b21fbcb5a
Reviewed-on: https://gerrit.chromium.org/gerrit/44276
Commit-Queue: Liam McLoughlin <lmcloughlin@chromium.org>
Reviewed-by: Liam McLoughlin <lmcloughlin@chromium.org>
Tested-by: Liam McLoughlin <lmcloughlin@chromium.org>
diff --git a/service.h b/service.h
index 115270c..356f5f9 100644
--- a/service.h
+++ b/service.h
@@ -554,6 +554,7 @@
   friend class WiMaxServiceTest;
   FRIEND_TEST(AllMockServiceTest, AutoConnectWithFailures);
   FRIEND_TEST(CellularCapabilityGSMTest, SetStorageIdentifier);
+  FRIEND_TEST(CellularCapabilityUniversalMainTest, UpdateStorageIdentifier);
   FRIEND_TEST(CellularServiceTest, IsAutoConnectable);
   FRIEND_TEST(DeviceTest, IPConfigUpdatedFailureWithStatic);
   // TODO(quiche): The SortServices test should probably move into