PowerUI access to thermalservice

Allow PowerUI / platform_app to use thermalservice for receiving
notifications of thermal events.

Bug: 66698613
Test: PowerNotificationWarningsTest, PowerUITest,
      manual: marlin and <redacted> with artificially low temperature
      threshold and logcat debugging messages
Change-Id: I5428bd5f99424f83ef72d981afaf769bdcd03629
Merged-In: I5428bd5f99424f83ef72d981afaf769bdcd03629

private/platform_app.te

@@ -54,6 +54,7 @@ allow platform_app mediadrmserver_service:service_manager find;
 allow platform_app persistent_data_block_service:service_manager find;
 allow platform_app radio_service:service_manager find;
 allow platform_app surfaceflinger_service:service_manager find;
+allow platform_app thermal_service:service_manager find;
 allow platform_app timezone_service:service_manager find;
 allow platform_app app_api_service:service_manager find;
 allow platform_app system_api_service:service_manager find;

public/thermalserviced.te

@@ -9,3 +9,5 @@ add_service(thermalserviced, thermal_service)
 hwbinder_use(thermalserviced)
 hal_client_domain(thermalserviced, hal_thermal)
 add_hwservice(thermalserviced, thermalcallback_hwservice)
+
+binder_call(thermalserviced, platform_app)