Add allow_binary_output_dir to CTS exe resource

The `resource` template now requires "allow_binary_output_dir=true` if
the resource is written to the test directory.

Change-Id: I94e974e5261192ede910940c678f5357c92309ec
Reviewed-on: https://fuchsia-review.googlesource.com/c/third_party/vulkan-cts/+/612187
Reviewed-by: Craig Stout <cstout@google.com>
diff --git a/fuchsia/BUILD.gn b/fuchsia/BUILD.gn
index 0456d3b..f3fb9ff 100644
--- a/fuchsia/BUILD.gn
+++ b/fuchsia/BUILD.gn
@@ -119,6 +119,7 @@
 
   sources = [ "$root_build_dir/vulkan-cts" ]
   outputs = [ "test/vulkan-cts" ]
+  allow_binary_output_dir = true
 }
 
 resource_group("cts-resources") {