Enable CCPR on Vulkan without geometry shaders

Removes the CCPR blacklist for Vulkan, and disables geometry shaders
on Vulkan while we continue to investigate http://skbug.com/7733.

Bug: skia:7733
Bug: skia:8408
Change-Id: I85b89a2f0170abed946441adbbf7c0b075897096
Reviewed-on: https://skia-review.googlesource.com/153625
Commit-Queue: Chris Dalton <csmartdalton@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>
3 files changed