Add interface info to .rc files

Signed-off-by: Felix <google@ix5.org>
Change-Id: I6d70bbdb66c3dce280bf6908c3750316a6f6cf70
diff --git a/drm/1.0/default/android.hardware.drm@1.0-service.rc b/drm/1.0/default/android.hardware.drm@1.0-service.rc
index a3457b5..790eded 100644
--- a/drm/1.0/default/android.hardware.drm@1.0-service.rc
+++ b/drm/1.0/default/android.hardware.drm@1.0-service.rc
@@ -1,4 +1,6 @@
 service vendor.drm-hal-1-0 /vendor/bin/hw/android.hardware.drm@1.0-service
+    interface android.hardware.drm@1.0::ICryptoFactory default
+    interface android.hardware.drm@1.0::IDrmFactory default
     class hal
     user media
     group mediadrm drmrpc