Define skeleton code of vmnic(Virtual Machine Network Interface Creator)

Purpose of this change is to define skeleton code of vmnic, so that
com.android.virt APEX contain the initial version of vmnic rust binary
with flag guarding. Vmnic called by other components is the scope of
following change, not this one.

Bug: 340376951
Test: adb shell ls /apex/com.android.virt/bin
Change-Id: Ic389944ecf4a98568a4d1771778844dbadeb2bf3
diff --git a/virtualizationservice/vmnic/vmnic.rc b/virtualizationservice/vmnic/vmnic.rc
new file mode 100644
index 0000000..486f387
--- /dev/null
+++ b/virtualizationservice/vmnic/vmnic.rc
@@ -0,0 +1,20 @@
+# 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.
+
+service vmnic /apex/com.android.virt/bin/vmnic
+    user system
+    group system
+    interface aidl android.system.virtualizationservice_internal.IVmnic
+    disabled
+    oneshot