Make create_native_executable_dist() mark its dir as data

Should fix breakpad_unittests on GN swarming bot.

BUG=589318

Review URL: https://codereview.chromium.org/1898273002

Cr-Original-Commit-Position: refs/heads/master@{#388301}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: ea3e8c1bada12e5ec3a168561076a94f2513d895

config/android/internal_rules.gni

@@ -1935,6 +1935,7 @@ template("copy_ex") {
     sources = []
     forward_variables_from(invoker,
                            [
+                             "data",
                              "deps",
                              "inputs",
                              "sources",

config/android/rules.gni

@@ -2282,6 +2282,9 @@ template("create_native_executable_dist") {
     ]
 
     dest = invoker.dist_dir
+    data = [
+      "${invoker.dist_dir}/",
+    ]
 
     _rebased_libraries_list = rebase_path(_libraries_list, root_build_dir)
     _rebased_binaries_list = rebase_path([ invoker.binary ], root_build_dir)