sepolicy: Add label to userdata file node

The userdata file node should be labeled to
avoid avc denied.

Bug: 171760673
Bug: 177364376
Test: build pass
Signed-off-by: Randall Huang <huangrandall@google.com>
Change-Id: I9ba89c75c120864c64ea278934b15edc3ba18a6c
diff --git a/public/userdata_sysdev.te b/public/userdata_sysdev.te
new file mode 100644
index 0000000..9974f36
--- /dev/null
+++ b/public/userdata_sysdev.te
@@ -0,0 +1 @@
+allow userdata_sysdev sysfs:filesystem associate;