luma: Add Biplab to contributors.

Change-Id: Iccb4fcd86a2949843ced04213567f14acad7ea35
diff --git a/CONTRIBUTORS b/CONTRIBUTORS
index bf0711f..bed00ea 100644
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -10,3 +10,4 @@
 #     Name <email address>
 Dan Afergan <afergan@google.com>
 Jason Campbell <jasoncampbell@google.com>
+Biplab Deka <biplabd@google.com>
\ No newline at end of file