Metal: Fix typo in TextureMtl::bindToShader Bug: angleproject:2634 Change-Id: I56d13dda7a6c0ad002db15cb780d7bf6b430bf65 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2519712 Reviewed-by: Alexey Knyazev <lexa.knyazev@gmail.com> Reviewed-by: Le Hoang Quyen <le.hoang.q@gmail.com> Commit-Queue: Alexey Knyazev <lexa.knyazev@gmail.com>