Add `OWNERS` file to `device/generic/art`.

Change-Id: Iee3aae658f2d7dc0a930ec183a9b5c1af0ea4913
Flag: EXEMPT only changing OWNERS
Test: n/a
diff --git a/OWNERS b/OWNERS
new file mode 100644
index 0000000..ef86412
--- /dev/null
+++ b/OWNERS
@@ -0,0 +1,2 @@
+# Bug component: 86431
+include platform/art:/OWNERS