Add derek to the WEAR_OWNERS file

Change-Id: Idca77ec7bb66327a01413c191dde94750a44bb2f
diff --git a/WEAR_OWNERS b/WEAR_OWNERS
index da8c83e..4ffb239 100644
--- a/WEAR_OWNERS
+++ b/WEAR_OWNERS
@@ -11,3 +11,4 @@
 [email protected]
 [email protected]
 [email protected]
[email protected]