aaudio: teardown stream based on a port handle

Needed for silencing specific input streams.
Pass AAudioService reference into AAudioServiceEndpointMMAP.
Use it to find a specific stream by PortHandle then
stop it and disconnect it.

Bug: 72134552
Test: b/72134552#comment10
Change-Id: Ibdf242f834c83b47c967c3cc634ed1083b019d4a
diff --git a/services/oboeservice/AAudioServiceEndpointShared.h b/services/oboeservice/AAudioServiceEndpointShared.h
index 227250c..d671710 100644
--- a/services/oboeservice/AAudioServiceEndpointShared.h
+++ b/services/oboeservice/AAudioServiceEndpointShared.h
@@ -30,7 +30,7 @@
 namespace aaudio {
 
 /**
- * This manages an internal stream that is shared by multiple Client streams.
+ * This manages an AudioStreamInternal that is shared by multiple Client streams.
  */
 class AAudioServiceEndpointShared : public AAudioServiceEndpoint {