WiFi: Modify OWNERS files

add kumachang@ in OWNERS file

Bug: 274850026
Test: None
Change-Id: I7240cb977f14c0d962b2727fde1185db07ffb920
diff --git a/OWNERS b/OWNERS
index 351212a..bed29cb 100644
--- a/OWNERS
+++ b/OWNERS
@@ -1,2 +1,3 @@
 etancohen@google.com
 arabawy@google.com
+kumachang@google.com