Add SELinux policies for vr_window_manager

This set of rules is neeeded to allow vr_windows_manager to run
successfully on the system.

Bug: 32541196
Test: `m -j32` succeeds. Sailfish device boots.
Change-Id: I0aec94d80f655a6f47691cf2622dd158ce9e475f
diff --git a/private/system_app.te b/private/system_app.te
index 7539da2..6de3693 100644
--- a/private/system_app.te
+++ b/private/system_app.te
@@ -56,7 +56,7 @@
 
 allow system_app servicemanager:service_manager list;
 # TODO: scope this down? Too broad?
-allow system_app { service_manager_type -netd_service -dumpstate_service -installd_service }:service_manager find;
+allow system_app { service_manager_type -netd_service -dumpstate_service -installd_service -virtual_touchpad_service }:service_manager find;
 
 allow system_app keystore:keystore_key {
     get_state