[idsig] Simplify building V4Signature from idsig

Bug: 248999133
Test: libidsig.test apkdmverity.test microdroid_manager_test
Change-Id: I383a2f9827d1c292e2a2afec1e2092f60728267f
diff --git a/libs/idsig/Android.bp b/libs/idsig/Android.bp
index 9f7d377..615d70e 100644
--- a/libs/idsig/Android.bp
+++ b/libs/idsig/Android.bp
@@ -31,5 +31,7 @@
     compile_multilib: "first",
     data: [
         "testdata/input.*",
+        "testdata/*.apk",
+        "testdata/*.idsig",
     ],
 }