Add Chromium OS OWNERS file for libmbim.

BUG=None
TEST=None

Change-Id: I29d10c15e63a5d9e44f6401302d05d3c802b95d3
diff --git a/OWNERS b/OWNERS
new file mode 100644
index 0000000..9d909b7
--- /dev/null
+++ b/OWNERS
@@ -0,0 +1,4 @@
+set noparent
+benchan@chromium.org
+pprabhu@chromium.org
+thieule@chromium.org