Restrict the bluetooth.audio@2.2 OWNERS for the small group

Because the version would be removed soon, we restrict owers for this
folder to easier control the work flow

Bug: 204585486
Test: NA
Change-Id: I82dd380b37aab26b8a438b2371c5025d80ee9598
diff --git a/bluetooth/audio/2.2/OWNERS b/bluetooth/audio/2.2/OWNERS
new file mode 100644
index 0000000..84f5b1e
--- /dev/null
+++ b/bluetooth/audio/2.2/OWNERS
@@ -0,0 +1,3 @@
+aliceypkuo@google.com
+ugoyu@google.com
+sattiraju@google.com