Make libloading available to product and vendor am: 1270bf741a am: 92e958f168 am: e2ca7383f7

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/libloading/+/2476418

Change-Id: I6248a69e6daea236c926b81a3c1bb8f3627881d6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

Android.bp

diff --git a/Android.bp b/Android.bp
index 62f030e..4c7c2ac 100644
--- a/Android.bp
+++ b/Android.bp
@@ -33,5 +33,6 @@
         "//apex_available:platform",
         "com.android.virt",
     ],
+    product_available: true,
     vendor_available: true,
 }