Update OWNERS for my new LDAP

Change-Id: Ie883c1a6589e3f69db6ad5d315c057f133b49af6
diff --git a/OWNERS b/OWNERS
index 9f1c88b..7b4c82d 100644
--- a/OWNERS
+++ b/OWNERS
@@ -1,5 +1,5 @@
 # Default code reviewers picked from top 3 or more developers.
 # Please update this list if you find better candidates.
-astrachan@google.com
+adelva@google.com
 john.stultz@linaro.org
 seanpaul@google.com