Add upstream patch to fix a bidi buffer bug

As this is a potential security issue, see bug for more details.

Bug:345352978
Change-Id: Ic6b714b8aa0e4a2d2eaf575d3006397714ce830e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/deps/icu/+/5653447
Reviewed-by: Shu-yu Guo <syg@chromium.org>
3 files changed