Fix ExcludeFromVendorSnapshot check

ExcludeFromVendorSnapshot() must return true if the module must not
be snapshotted and built from the vendor source tree.
The default value must be false because rust modules are provided by
the system source tree.

Bug: 184042776
Bug: 189372652
Test: m nothing
Change-Id: I267c3a5674bea966d1dd831cda73538ae94cf25f
diff --git a/rust/snapshot_utils.go b/rust/snapshot_utils.go
index e0ed1f7..943c790 100644
--- a/rust/snapshot_utils.go
+++ b/rust/snapshot_utils.go
@@ -20,12 +20,12 @@
 
 func (mod *Module) ExcludeFromVendorSnapshot() bool {
 	// TODO Rust does not yet support snapshotting
-	return true
+	return false
 }
 
 func (mod *Module) ExcludeFromRecoverySnapshot() bool {
 	// TODO Rust does not yet support snapshotting
-	return true
+	return false
 }
 
 func (mod *Module) IsSnapshotLibrary() bool {