webnn: Rename READ[_FROM] and WRITE[_TO] MLTensorUsageFlags
As agreed upon in discussions on the MLTensor explainer:
webmachinelearning/webnn#754
Bug: 361372446
Cq-Include-Trybots: luci.chromium.try:win11-blink-rel
Change-Id: I8bb993c1855c12eac68dc0f2ea359b5f1ae61932
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5858162
Commit-Queue: Austin Sullivan asully@chromium.org
Reviewed-by: Reilly Grant reillyg@chromium.org
Reviewed-by: Alex Gough ajgo@chromium.org
Cr-Commit-Position: refs/heads/main@{#1355445}