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/file_contexts b/private/file_contexts
index a3723e2..35796fb 100644
--- a/private/file_contexts
+++ b/private/file_contexts
@@ -262,6 +262,7 @@
 /system/bin/usbd   u:object_r:usbd_exec:s0
 /system/bin/inputflinger u:object_r:inputflinger_exec:s0
 /system/bin/logd        u:object_r:logd_exec:s0
+/system/bin/lpdumpd        u:object_r:lpdumpd_exec:s0
 /system/bin/rss_hwm_reset	u:object_r:rss_hwm_reset_exec:s0
 /system/bin/perfetto        u:object_r:perfetto_exec:s0
 /system/bin/traced        u:object_r:traced_exec:s0