Give owneship of packages/NetworkStack to Android Core Networking

Test: ../../build/make/tools/checkowners.py packages/NetworkStack/OWNERS
Change-Id: I6254f1ac2a24611ca6901f8f940d9e5babaaf373
diff --git a/OWNERS b/OWNERS
new file mode 100644
index 0000000..a395465
--- /dev/null
+++ b/OWNERS
@@ -0,0 +1,5 @@
+codewiz@google.com
+jchalard@google.com
+lorenzo@google.com
+reminv@google.com
+satk@google.com