Initial implementation of HIDL-AIDL Telephony HAL translator

Bug: 203699028
Test: Boot and grep logcat against radiocompat
Change-Id: I182edf3b1fa39b30818e79a68fc586f12b677d19
diff --git a/radio/aidl/compat/service/radio-compat.rc b/radio/aidl/compat/service/radio-compat.rc
new file mode 100644
index 0000000..a159876
--- /dev/null
+++ b/radio/aidl/compat/service/radio-compat.rc
@@ -0,0 +1,4 @@
+service vendor.radio-compat /vendor/bin/hw/android.hardware.radio-service.compat
+    class hal
+    user nobody
+    group system