Rename InCooldownOrLockout field in B&A request

... to inCooldownOrLockout, to be consistent with other fields, and
match the agreed design.

Change-Id: I0c2010e61997491cee3a94ba3945b006d396a316
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6413949
Reviewed-by: Russ Hamilton <behamilton@google.com>
Commit-Queue: Qingxin Wu <qingxinwu@google.com>
Cr-Commit-Position: refs/heads/main@{#1440282}