Make host targets use non-repackaged targets

A host build target was depending on a target that is intended for
on-device, repackaged (com.android.) use. This switches to using the
unbundled target instead.

Test: Build
Bug: 111055375
Bug: 111734251
Change-Id: Ie81dd7257a14756fc21fa6f956175e5bd2ff80c1
diff --git a/tools/signtos/Android.bp b/tools/signtos/Android.bp
index b26631f..688e7b8 100644
--- a/tools/signtos/Android.bp
+++ b/tools/signtos/Android.bp
@@ -21,7 +21,7 @@
     srcs: ["SignTos.java"],
     manifest: "SignTos.mf",
     static_libs: [
-        "bouncycastle",
-        "bouncycastle-bcpkix",
+        "bouncycastle-unbundled",
+        "bouncycastle-bcpkix-unbundled",
     ],
 }