Allow bugreport to dump some HAL processes.

Whitelist several hals which can be dumped by bugreports. Don't want to
dump more because of the time it takes and also certain hals have
sensitive data which shouldn't be dumped (i.e. keymaster).

Test: dumps work for given hals
Bug: 36414311
Change-Id: Ic0eddfa95fa33abbc983d3b5161e42c240663f22

public/dumpstate.te

@@ -52,18 +52,24 @@ allow dumpstate domain:process getattr;
 allow dumpstate { appdomain system_server }:process signal;
 
 # Signal native processes to dump their stack.
-# This list comes from native_processes_to_dump in dumpstate/utils.c
 allow dumpstate {
+  # This list comes from native_processes_to_dump in dumpstate/utils.c
   audioserver
   cameraserver
   drmserver
   inputflinger
-  mediacodec
   mediadrmserver
   mediaextractor
   mediaserver
   sdcardd
   surfaceflinger
+
+  # This list comes from hal_interfaces_to_dump in dumpstate/utils.c
+  hal_audio_server
+  hal_bluetooth_server
+  hal_camera_server
+  hal_vr_server
+  mediacodec # TODO(b/36375899): hal_omx_server
 }:process signal;
 
 # Connect to tombstoned to intercept dumps.