Add OWNERS for VTS module VtsHalSoundtriggerV2_2TargetTest

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: I33aa46004d90aecda44d5c09809eabde0455a185
diff --git a/soundtrigger/2.2/vts/functional/OWNERS b/soundtrigger/2.2/vts/functional/OWNERS
new file mode 100644
index 0000000..43126f6
--- /dev/null
+++ b/soundtrigger/2.2/vts/functional/OWNERS
@@ -0,0 +1,3 @@
+# Bug component: 48436
+ytai@google.com
+mdooley@google.com