[ssci] Add Shipped field to READMEs

This CL adds the Shipped field and updates the
License File field in Chromium READMEs within the
directory /tools/valgrind.

See the LSC doc at go/lsc-chrome-metadata.

This CL was uploaded by git cl split.

R=rnk@chromium.org

Bug: b:285450740
Change-Id: Id23014550c7e7e0dbf51b5ec31801d14ce9b362b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4664340
Reviewed-by: Reid Kleckner <rnk@chromium.org>
Auto-Submit: Anne Redulla <aredulla@google.com>
Commit-Queue: Reid Kleckner <rnk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1170581}
NOKEYCHECK=True
GitOrigin-RevId: efebae121eaffa6af0b7230a53e0bdef17b03b17

asan/third_party/README.chromium

diff --git a/asan/third_party/README.chromium b/asan/third_party/README.chromium
index ad76138..4a1f80d 100644
--- a/asan/third_party/README.chromium
+++ b/asan/third_party/README.chromium
@@ -3,5 +3,6 @@
 Version: a81e45b8bcb8eb274ad73357e10e2cdf8a314a8c
 URL: https://github.com/llvm/llvm-project/blob/a81e45b8bcb8eb274ad73357e10e2cdf8a314a8c/compiler-rt/lib/asan/scripts/asan_symbolize.py
 Security Critical: no
+Shipped: yes
 
 asan_symbolize.py is a verbatim copy of asan_symbolize.py in the LLVM trunk.