Use RendererVk instead of VkDevice as a parameter in garbage collection
functions.

Bug: angleproject:2162
Change-Id: Ifd53e05223d6d603402c9b7fcfa82fe1f896458c
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2131882
Commit-Queue: Mohan Maiya <m.maiya@samsung.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>