bug#58251: Mesa missing patches for Vulkan shared libraries

[Kaelyn via Bug reports for GNU Guix]

I've just sent in https://issues.guix.gnu.org/58566 to update mesa on 
core-updates, and that patch includes a new phase to fix up the Vulkan layer 
manifests similar to how I'd done for vulkan-validationlayers in 
https://issues.guix.gnu.org/57297.