Add pavlis@ and jeffrygaston@ to top-level OWNERS

Change-Id: I81f572bba4038ec9426522aff4d25b1838852ca8
diff --git a/OWNERS b/OWNERS
index 80a056f..c06e502 100644
--- a/OWNERS
+++ b/OWNERS
@@ -5,9 +5,11 @@
 [email protected]
 [email protected]
 [email protected]
[email protected]
 [email protected]
 [email protected]
 [email protected]
[email protected]
 [email protected]
 [email protected]
 [email protected]