fix: required deps of phony modules are correctly tracked

ArchType.Multilib of native modules are either lib32 or lib64.
Arch-neural modules have "" not "common".

Bug: 321626681
Test: go test ./...
Change-Id: Ie7e6a5203e9f671487dbf32ea2343ada7407a28f
diff --git a/filesystem/Android.bp b/filesystem/Android.bp
index cdf6682..cead5fc 100644
--- a/filesystem/Android.bp
+++ b/filesystem/Android.bp
@@ -10,6 +10,7 @@
         "soong",
         "soong-android",
         "soong-bpf", // for testing
+        "soong-phony", // for testing
         "soong-linkerconfig",
     ],
     srcs: [