Replace jmgao@ with shaju@ in OWNERS.

Test: N/A
Change-Id: If9dac405da50766f62006a0f52223d91f79ab9aa
diff --git a/OWNERS b/OWNERS
index 2108ae5..6cbf5b3 100644
--- a/OWNERS
+++ b/OWNERS
@@ -1,4 +1,4 @@
-jmgao@google.com
+shaju@google.com
 enh@google.com
 
 include platform/packages/modules/common:/MODULES_OWNERS  # see go/mainline-owners-policy