Add a TODO for the Audio HAL socket use violation

Test: mmm system/sepolicy -- this is just a comment change
Bug: 37640821
Change-Id: I28c27b369268e75ab6b2d27bcb30b88acb2732e6

vendor/hal_audio_default.te

@@ -6,4 +6,5 @@ init_daemon_domain(hal_audio_default)
 
 hal_client_domain(hal_audio_default, hal_allocator)
 
+# TODO(b/37640821): Remove one Audio HAL is no longer granted access bluetooth daemon sockets
 typeattribute hal_audio_default socket_between_core_and_vendor_violators;