Add OWNERS for VTS module VtsHalThermalV2_0TargetTest

Each VTS module is required to have OWNERS file. The ownership is based on
go/vts-owners. For more information about ownership policy, please visit
go/xts-owners-policy.

Test: Tree Hugger
Bug: 143903671
Change-Id: I521329fd4a216bf50836a07a5e766167733fd7b7
diff --git a/thermal/2.0/vts/functional/OWNERS b/thermal/2.0/vts/functional/OWNERS
new file mode 100644
index 0000000..0c282a0
--- /dev/null
+++ b/thermal/2.0/vts/functional/OWNERS
@@ -0,0 +1,2 @@
+# Bug component: 623506
+wvw@google.com