Add dirgroup for trusty genrule

Bug: 358302178
Test: m lk.elf.x86_64 lk.elf.arm64
Change-Id: I00197d52cec58cd0df2364e3ce1fc2b6cfeeef50
diff --git a/Android.bp b/Android.bp
index baf3291..68115aa 100644
--- a/Android.bp
+++ b/Android.bp
@@ -86,3 +86,9 @@
         "VtsHalHidlTargetTestBase",
     ],
 }
+
+dirgroup {
+    name: "trusty_dirgroup_hardware_interfaces",
+    dirs: ["."],
+    visibility: ["//trusty/vendor/google/aosp/scripts"],
+}