Add Vulkan to BuildStats-Mini

Bug: skia:
Change-Id: I320b7945e5e2939404e039cb83831b2bb408aaac
Reviewed-on: https://skia-review.googlesource.com/c/161842
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Kevin Lubick <kjlubick@google.com>
4 files changed