Update OWNERS

Remove some people no longer actively working on this, add some new
people who are.

Test: N/A
Change-Id: I55cf986ccd879caca2e4996bab0434e75b006312
diff --git a/OWNERS b/OWNERS
index 310add7..e560cec 100644
--- a/OWNERS
+++ b/OWNERS
@@ -12,16 +12,19 @@
 # Other owners
 alanstokes@google.com
 aliceywang@google.com
-ardb@google.com
-ascull@google.com
 inseob@google.com
+jaewan@google.com
+jakobvukalovic@google.com
 jeffv@google.com
 jooyung@google.com
-mzyngier@google.com
+keirf@google.com
 ptosi@google.com
 qperret@google.com
 qwandor@google.com
-serbanc@google.com
+sebastianene@google.com
+seungjaeyoo@google.com
 shikhapanwar@google.com
+smostafa@google.com
 tabba@google.com
+vdonnefort@google.com
 victorhsieh@google.com