Convert external/smali to Android.bp

See build/soong/README.md for more information.

Test: m checkbuild
Change-Id: I95bbb7301406325c9233f2a7f46f8e087e373922
diff --git a/Android.bp b/Android.bp
new file mode 100644
index 0000000..40faeef
--- /dev/null
+++ b/Android.bp
@@ -0,0 +1,28 @@
+// Copyright (C) 2017 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.
+
+filegroup {
+    name: "smali_script",
+    srcs: ["scripts/smali"],
+}
+
+filegroup {
+    name: "baksmali_script",
+    srcs: ["scripts/baksmali"],
+}
+
+filegroup {
+    name: "smali_build.gradle",
+    srcs: ["build.gradle"],
+}