Export AIDL files as a filegroup framework.jar

Put AIDL files into a filegroup so they can be imported as sources
for framework.jar.

Bug: 69917341
Test: m checkbuild
Change-Id: Ic0cee12498a0afa5ee08095212fb96493ca816ec
diff --git a/Android.bp b/Android.bp
new file mode 100644
index 0000000..c3d164b
--- /dev/null
+++ b/Android.bp
@@ -0,0 +1,8 @@
+// AIDL interface between libupdate_engine and framework.jar
+filegroup {
+    name: "libupdate_engine_aidl",
+    srcs: [
+        "binder_bindings/android/os/IUpdateEngine.aidl",
+        "binder_bindings/android/os/IUpdateEngineCallback.aidl",
+    ],
+}