Make libhardware_headers available for native_bridge

Bug: http://b/153609531

Test: m libRSDriver.native_bridge

Change-Id: I05220635027635ff12a7d5201b5c716ca4fda5ea
diff --git a/Android.bp b/Android.bp
index 15f2742..3ac123e 100644
--- a/Android.bp
+++ b/Android.bp
@@ -18,6 +18,8 @@
     export_include_dirs: ["include"],
     recovery_available: true,
     vendor_available: true,
+    // TODO(b/153609531): remove when no longer needed.
+    native_bridge_supported: true,
     target: {
         recovery: {
             exclude_header_libs: [