gn2bp: Support write_native_libraries_java.py

Test: m cronet_aml_build_android_native_libraries_gen
Change-Id: I60dc7a01003ef4dda0acf3ce38941b644d14592e
diff --git a/tools/gn2bp/Android.bp.swp b/tools/gn2bp/Android.bp.swp
index 0b5695e..b1c88c9 100644
--- a/tools/gn2bp/Android.bp.swp
+++ b/tools/gn2bp/Android.bp.swp
@@ -2866,7 +2866,7 @@
 genrule {
     name: "cronet_aml_build_android_native_libraries_gen",
     cmd: "$(location build/android/gyp/write_native_libraries_java.py) --output " +
-         "gen/build/android/native_libraries_gen.srcjar " +
+         "$(out) " +
          "--cpu-family " +
          "CPU_FAMILY_X86",
     out: [