Add authsecret AIDL interface

Bug: 176107318
Change-Id: Ia430177018344b093fea3314eb54ef2423fbf636
diff --git a/authsecret/aidl/default/android.hardware.authsecret-service.example.rc b/authsecret/aidl/default/android.hardware.authsecret-service.example.rc
new file mode 100644
index 0000000..fef6e24
--- /dev/null
+++ b/authsecret/aidl/default/android.hardware.authsecret-service.example.rc
@@ -0,0 +1,4 @@
+service vendor.authsecret_default /vendor/bin/hw/android.hardware.authsecret-service.example
+    class hal
+    user hsm
+    group hsm