Rebind GrGLRenderTarget if there is a lazy stencil attachment change.

Bug: chromium:1271431
Change-Id: Ie5bef1a8f18d4d1e2d9a92afdf5c5305d3d9bdb2
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/475256
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>
6 files changed