Split CompOS interface in two

One service for system server (which will become stable), one for
internal calls from odrefresh (which will probably go away soon).

Test: compos_cmd forced-compile-test
Bug: 199147668
Change-Id: Ia7024e18fe1708eafb673a68b944c3f011715f11
diff --git a/compos/apex/composd.rc b/compos/apex/composd.rc
index 3e2efb1..bf34335 100644
--- a/compos/apex/composd.rc
+++ b/compos/apex/composd.rc
@@ -17,5 +17,6 @@
     user root
     group system
     interface aidl android.system.composd
+    interface aidl android.system.composd.internal
     disabled
     oneshot