Add new team member 'Yuyang Huang' to OWNERS

Test: TreeHugger
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I729a91cdc64acaed9ff4d39eb7e3cfafc0dc0e39
diff --git a/OWNERS_core_networking b/OWNERS_core_networking
index 3a08422..172670e 100644
--- a/OWNERS_core_networking
+++ b/OWNERS_core_networking
@@ -19,3 +19,4 @@
 waynema@google.com
 xiaom@google.com
 yumike@google.com
+yuyanghuang@google.com