[ssci] Add Shipped field to READMEs This CL adds the Shipped field and updates the License File field in Chromium READMEs within the directory /third_party/shell-encryption. See the LSC doc at go/lsc-chrome-metadata. This CL was uploaded by git cl split. [email protected] Bug: b:285450740 Change-Id: Ibab05da27b8e34643ee62c6e814b359d26a185e1 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4663737 Reviewed-by: Amr Aboelkher <[email protected]> Commit-Queue: Anne Redulla <[email protected]> Cr-Commit-Position: refs/heads/main@{#1167200} NOKEYCHECK=True GitOrigin-RevId: 7a3266f67640870b1ff970957cea64a790555e96