Treble HAL interfaces for drm+crypto

b/32815560

Tests: Make completes successfully

Change-Id: Id65cfef95094ccd9a9e95fa567651f94b66aaa51
diff --git a/drm/Android.bp b/drm/Android.bp
new file mode 100644
index 0000000..412e162
--- /dev/null
+++ b/drm/Android.bp
@@ -0,0 +1,5 @@
+// This is an autogenerated file, do not edit.
+subdirs = [
+    "crypto/1.0",
+    "drm/1.0",
+]