Add rules for lpdump and lpdumpd

- lpdump is a binary on the device that talks to lpdumpd
  via binder.

- lpdumpd is a daemon on the device that actually reads
  dynamic partition metadata. Only lpdump can talk to it.

Bug: 126233777
Test: boots (sanity)
Test: lpdump

Change-Id: I0e21f35ac136bcbb0603940364e8117f2d6ac438
diff --git a/private/system_app.te b/private/system_app.te
index 9a5e455..05831a3 100644
--- a/private/system_app.te
+++ b/private/system_app.te
@@ -80,6 +80,7 @@
   -installd_service
   -iorapd_service
   -ipmemorystore_service
+  -lpdump_service
   -netd_service
   -system_suspend_control_service
   -virtual_touchpad_service