Add C++ demo for AVF

Bug: 279024580
Test: follow README.md
Change-Id: I9f031e6523daa4b333608b44d47a462ee18ceb81
diff --git a/demo_native/Android.bp b/demo_native/Android.bp
new file mode 100644
index 0000000..901f829
--- /dev/null
+++ b/demo_native/Android.bp
@@ -0,0 +1,18 @@
+package {
+    default_applicable_licenses: ["Android-Apache-2.0"],
+}
+
+cc_binary {
+    name: "vm_demo_native",
+    srcs: ["main.cpp"],
+    static_libs: [
+        "libbase",
+        "android.system.virtualizationservice-ndk",
+        "com.android.microdroid.testservice-ndk",
+    ],
+    shared_libs: [
+        "libbinder_ndk",
+        "libbinder_rpc_unstable",
+        "liblog",
+    ],
+}