Add OWNERS to platform/system/ucontainer

Bug: 116830225
Change-Id: Ib73273d539d7d449a4b60dd914c0e69a23affc02
diff --git a/OWNERS b/OWNERS
new file mode 100644
index 0000000..c91c6b8
--- /dev/null
+++ b/OWNERS
@@ -0,0 +1,5 @@
+andrewhsieh@google.com
+howardsoc@google.com
+malchev@google.com
+paultrautrim@google.com
+tyanh@google.com