Include native bridge variant of jni_headers in sdk

Bug: 195754365
Test: m art-module-sdk
Change-Id: I0e3bef2c015f7115c4224985b8331f7d6ff0b40e
diff --git a/build/sdk/Android.bp b/build/sdk/Android.bp
index 6449f1a..2c81463 100644
--- a/build/sdk/Android.bp
+++ b/build/sdk/Android.bp
@@ -53,6 +53,12 @@
 
     prebuilt_visibility: prebuilt_visibility,
 
+    traits: {
+        native_bridge_support: [
+            "jni_headers",
+        ],
+    },
+
     target: {
         // Both android and host linux but not windows or darwin.
         linux: {