Fix apex rust_dyn_libs property

The apex rust_dyn_libs property wasn't being propagated to a dependency.

Test: TestBasicApex
Flag: EXEMPT bugfix
Change-Id: Ib93a322377933b9ad94cc2a97b71bb38e2710b8e
diff --git a/apex/apex.go b/apex/apex.go
index 30b16ee..0c56c30 100644
--- a/apex/apex.go
+++ b/apex/apex.go
@@ -833,6 +833,7 @@
 		deps.Merge(ctx, a.properties.Multilib.Both)
 		deps.Merge(ctx, ApexNativeDependencies{
 			Native_shared_libs: a.properties.Native_shared_libs,
+			Rust_dyn_libs:      a.properties.Rust_dyn_libs,
 			Tests:              a.properties.Tests,
 			Jni_libs:           a.properties.Jni_libs,
 		})