Make gdbstub available to product and vendor

Bug: 270690570

Test: mma in external/rust/crates
Change-Id: Ia396f6be23e23579f5ce002dfdf8ebfaa4d92812
diff --git a/Android.bp b/Android.bp
index c7537d7..a16af58 100644
--- a/Android.bp
+++ b/Android.bp
@@ -44,4 +44,6 @@
         "//apex_available:platform",
         "//apex_available:anyapex",
     ],
+    product_available: true,
+    vendor_available: true,
 }