Drop prebuilt files to android source tree.

bootstrap

reproxy

dumpstats

rewrapper

dependency_scanner_go_plugin.so

The change is generated with prebuilt drop tool.
diff --git a/.prebuilt_info/rbe/prebuilt_info_test_rewrapper.asciipb b/.prebuilt_info/rbe/prebuilt_info_test_rewrapper.asciipb
new file mode 100644
index 0000000..5bb2cb2
--- /dev/null
+++ b/.prebuilt_info/rbe/prebuilt_info_test_rewrapper.asciipb
@@ -0,0 +1,15 @@
+drops {
+  dest_file: "test/rewrapper"
+  version: "test"
+  version_group: "rbe"
+  git_project: "platform/prebuilts/remoteexecution-client"
+  git_branch: "master-build-rbe-testing"
+  kokoro_drop {
+    full_job_name: "re-client/gcp_ubuntu/release"
+    build_number: "52"
+    artifact_gcs_bucket: "reclient-release-artifacts"
+    artifact_root: "prod/re-client/gcp_ubuntu/release/52/20191216-120358"
+    artifact_name: "rewrapper"
+    artifact_permission_mode: "755"
+  }
+}