Refining driver subsystem to facilitate coordinated start-up.

- for ONOS-6402

Change-Id: I7f64fc62ad1d451fcf55624b2422b60631a3c8e8
diff --git a/core/api/src/main/java/org/onosproject/net/driver/DefaultDriverProviderService.java b/core/api/src/main/java/org/onosproject/net/driver/DefaultDriverProviderService.java
index acb5da6..9c9a72e 100644
--- a/core/api/src/main/java/org/onosproject/net/driver/DefaultDriverProviderService.java
+++ b/core/api/src/main/java/org/onosproject/net/driver/DefaultDriverProviderService.java
@@ -18,6 +18,9 @@
 
 /**
  * Service representing availability of default drivers.
+ *
+ * @deprecated in Kingfisher release (1.10)
  */
+@Deprecated
 public interface DefaultDriverProviderService {
 }