Include build target for “test_fips”.

This utility binary is used to demo the various break-tests required by
CMVP “on-site” testing. It'll never be needed outside of that context,
but it is good to ensure that it continues to build because it's needed
for each validation.

Change-Id: I94bde02d66df0d26f6abb1ee0e030f93a4cde501
diff --git a/Android.bp b/Android.bp
index 1896afa..a799db4 100644
--- a/Android.bp
+++ b/Android.bp
@@ -329,3 +329,18 @@
         "libssl",
     ],
 }
+
+// Utility binary for CMVP on-site testing.
+cc_binary {
+  name: "test_fips",
+  host_supported: false,
+  defaults: [
+      "boringssl_flags",
+  ],
+  shared_libs: [
+      "libcrypto",
+  ],
+  srcs: [
+      "src/util/fipstools/cavp/test_fips.c",
+  ],
+}