libbpf_minimal: vendor_available

Bug: 162057235
Test: load vendor BPF program
Change-Id: Ib9884de9f2460e345d799b870926ce77d77c2eac
diff --git a/Android.bp b/Android.bp
index c9c65b5..01acaa7 100644
--- a/Android.bp
+++ b/Android.bp
@@ -94,6 +94,7 @@
 
 cc_library {
     name: "libbpf_minimal",
+    vendor_available: true,
     native_bridge_supported: true,
     srcs: [
         "android/bpf_stub.c",