Give dumpstate access to gsid.

Bug: 140204341
Test: dumpstate
Change-Id: If06e334ade2c4bab8ca6726747aa6d30f4fe4ad6
diff --git a/private/dumpstate.te b/private/dumpstate.te
index 5ea0d43..cfa05fc 100644
--- a/private/dumpstate.te
+++ b/private/dumpstate.te
@@ -53,3 +53,8 @@
 # For dumping dynamic partition information.
 set_prop(dumpstate, lpdumpd_prop)
 binder_call(dumpstate, lpdumpd)
+
+# For dumping device-mapper and snapshot information.
+allow dumpstate gsid_exec:file rx_file_perms;
+set_prop(dumpstate, ctl_gsid_prop)
+binder_call(dumpstate, gsid)