Make libblas buildable for native_bridge

Bug: http://b/153609531

Test: m libblas.native_bridge

Change-Id: I587d1fc8213a9b54d21e4521e31ddaddcc6b1a02
diff --git a/Android.bp b/Android.bp
index dcd3fb6..a27ced2 100644
--- a/Android.bp
+++ b/Android.bp
@@ -169,6 +169,8 @@
 cc_library_shared {
     name: "libblas",
     vendor_available: false,
+    // TODO(b/153609531): remove when no longer needed.
+    native_bridge_supported: true,
     vndk: {
         enabled: true,
         support_system_process: true,