This avoids the texel buffer view serials (shared with image view
serials) recklessly getting large.

Bug: angleproject:5185
Change-Id: I0debe73771094b395f6526475aa3c22a91f9e05e
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2623811Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>