Rename MountService to StorageManagerService.

Bug: 30977067
Test: Existing tests pass
Change-Id: Ieac0f11c2b249dcd60441b14c1f391e6f8131d42
diff --git a/libs/storage/IMountShutdownObserver.cpp b/libs/storage/IMountShutdownObserver.cpp
index 6114d4a..e5de603 100644
--- a/libs/storage/IMountShutdownObserver.cpp
+++ b/libs/storage/IMountShutdownObserver.cpp
@@ -31,7 +31,7 @@
     virtual void onShutDownComplete(const int32_t /* statusCode */) {}
 };
 
-IMPLEMENT_META_INTERFACE(MountShutdownObserver, "android.os.storage.IMountShutdownObserver")
+IMPLEMENT_META_INTERFACE(MountShutdownObserver, "android.os.storage.IStorageShutdownObserver")
 
 status_t BnMountShutdownObserver::onTransact(
     uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)