Merge "Add vndk tag for libunwindstack which must be a vndk-sp"

libunwindstack/Android.bp

@@ -35,6 +35,10 @@ cc_defaults {
 cc_library {
     name: "libunwindstack",
     vendor_available: true,
+    vndk: {
+        enabled: true,
+        support_system_process: true,
+    },
     defaults: ["libunwindstack_flags"],
     export_include_dirs: ["include"],