robolectric requires autobuilder to build. am: caf61962e9 am: 822c404c44

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/auto/+/20387581

Change-Id: Iee86c89c9f4e5ada0d0c847930ed863824fd58f1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
diff --git a/value/Android.bp b/value/Android.bp
index 2f554aa..1198495 100644
--- a/value/Android.bp
+++ b/value/Android.bp
@@ -72,6 +72,13 @@
 }
 
 java_plugin {
+    name: "auto_value_builder_plugin",
+    static_libs: ["libauto_value_plugin"],
+    processor_class: "com.google.auto.value.processor.AutoBuilderProcessor",
+    visibility: ["//visibility:public"],
+}
+
+java_plugin {
     name: "auto_oneof_plugin",
     static_libs: [
         "libauto_value_plugin",