Convert doclava to Soong for Droiddoc

Test:  convert libcore docs Android.mk to Soong.
Bug: b/70351683
Change-Id: Ib203b34ec2f8f32050148dec7f5f16bd23027948
ehange-Id: I4dc9d0fb5515da2922708302b8117b6e868af084
diff --git a/Android.bp b/Android.bp
new file mode 100644
index 0000000..18104ff
--- /dev/null
+++ b/Android.bp
@@ -0,0 +1,32 @@
+// Copyright (C) 2018 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+java_library_host {
+    name: "doclava",
+    srcs: [
+        "src/**/*.java",
+    ],
+    static_libs: [
+        "jsilver",
+        "guavalib",
+        "antlr-runtime",
+        "tagsoup",
+    ],
+    use_tools_jar: true,
+    java_resource_dirs: ["res"],
+}
+
+// TODO: add a test target.
+// For now, you can run the unit tests thus:
+// vogar --classpath /usr/lib/jvm/java-6-sun/lib/tools.jar --classpath ../../out/host/common/obj/JAVA_LIBRARIES/antlr_intermediates/javalib.jar --sourcepath src/ --sourcepath ../jsilver/src/ --mode jvm test/doclava/ApiCheckTest.java