Move setupGeometry() from GrGLGpu to GrGLOpsRenderPass

Change-Id: I8788b96e07216be738c0ce1babb810b05bf46694
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/273696
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
5 files changed