Add system/bt to Rust allowed paths.

Test: m nothing

Change-Id: Ie467a622dfdb8aea94a06f5fe20183dc9d149254
diff --git a/rust/config/allowed_list.go b/rust/config/allowed_list.go
index b5c70dc..3ad32fa 100644
--- a/rust/config/allowed_list.go
+++ b/rust/config/allowed_list.go
@@ -14,6 +14,7 @@
 		"frameworks/native/libs/binder/rust",
 		"packages/modules/Virtualization",
 		"prebuilts/rust",
+		"system/bt",
 		"system/extras/profcollectd",
 		"system/hardware/interfaces/keystore2",
 		"system/security",