Make proc-macro-error-attr available to product and vendor am: e720490b44 am: ee061705d4 am: 1fdea0dd71 am: 9a7622aa52

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/proc-macro-error-attr/+/2476392

Change-Id: If38a977e747401f154cc1d31d68747ff59b3eaf5
Signed-off-by: Automerger Merge Worker <[email protected]>
diff --git a/Android.bp b/Android.bp
index 010a3be..208932d 100644
--- a/Android.bp
+++ b/Android.bp
@@ -51,4 +51,6 @@
         "libquote",
     ],
     compile_multilib: "first",
+    product_available: true,
+    vendor_available: true,
 }