Introduce IVmCapabilitiesService HAL

This HAL can be used to provide vendor-specific extensions to VMs. First
use case for this HAL is custom smc filtering project, which provides a
way for some vendor-owner VMs to allow issue vendor-specific smcs. See
go/pkvm-pvm-allow-vendor-tz-services-access for more details

Bug: 360102915
Test: presubmit
Change-Id: Iaf8e3e066f5bda9eae079252720860d362d14426
diff --git a/virtualization/capabilities_service/aidl/Android.bp b/virtualization/capabilities_service/aidl/Android.bp
new file mode 100644
index 0000000..b0bbbdd
--- /dev/null
+++ b/virtualization/capabilities_service/aidl/Android.bp
@@ -0,0 +1,35 @@
+// Copyright (C) 2024 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.
+
+package {
+    default_team: "trendy_team_virtualization",
+    default_applicable_licenses: ["Android-Apache-2.0"],
+}
+
+aidl_interface {
+    name: "android.hardware.virtualization.capabilities.capabilities_service",
+    vendor_available: true,
+    srcs: ["android/**/*.aidl"],
+    stability: "vintf",
+    backend: {
+        rust: {
+            enabled: true,
+            apex_available: [
+                "//apex_available:platform",
+                "com.android.virt",
+            ],
+        },
+    },
+    frozen: false,
+}