Add Ravi Teja as a reviewer

I have worked on various features and fixed several issues
in this user-manager repository.
I have thorough understanding of LDAP and user-manager

Here is my contribution in this repository
https://github.com/openbmc/phosphor-user-manager/commits?author=raviteja-b

Thus, I apply to be a reviewer of this repo. Hope I can contribute
more and help the OpenBMC community.

Change-Id: Id79f7884255ab99731c64e508f597955bf3a062f
Signed-off-by: Ravi Teja <raviteja28031990@gmail.com>
diff --git a/OWNERS b/OWNERS
index 9020f01..882e148 100644
--- a/OWNERS
+++ b/OWNERS
@@ -36,6 +36,7 @@
 
 reviewers:
 - nanzhoumails@gmail.com
+- raviteja28031990@gmail.com
 
 matchers:
 
@@ -43,3 +44,7 @@
 - name: Ratan Gupta
   email: ratankgupta31@gmail.com
   discord: rgupta
+
+- name: Ravi Teja
+  email: raviteja28031990@gmail.com
+  discord: raviteja