[API] Add new service to notify host from microdroid manager

This CL adds a new service to notify the host from
microdroid manager instead of the payload process.

Bug: 243512047
Test: MicrodroidTests microdroid_manager_test
Change-Id: Ic634944f6dd5266c084f495787bf4568a4d18ed3
diff --git a/microdroid_manager/aidl/Android.bp b/microdroid_manager/aidl/Android.bp
new file mode 100644
index 0000000..98ce6f5
--- /dev/null
+++ b/microdroid_manager/aidl/Android.bp
@@ -0,0 +1,17 @@
+package {
+    default_applicable_licenses: ["Android-Apache-2.0"],
+}
+
+aidl_interface {
+    name: "android.system.virtualization.payload",
+    srcs: ["android/system/virtualization/payload/*.aidl"],
+    unstable: true,
+    backend: {
+        rust: {
+            enabled: true,
+            apex_available: [
+                "com.android.virt",
+            ],
+        },
+    },
+}