[ssci] Added Shipped field to README

This CL adds the Shipped field (and may update the
License File field) in Chromium READMEs. Changes were
automatically created, so if you disagree with any of
them (e.g. a package is used only for testing purposes
and is not shipped), comment the suggested change and
why.

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

Bug: b/285450740
Change-Id: I7db10ca62ebc3a347d24fb6e455d67ab0f0b5582

README.chromium

diff --git a/README.chromium b/README.chromium
index 9177d28..303b06b 100644
--- a/README.chromium
+++ b/README.chromium
@@ -2,6 +2,7 @@
 URL: https://github.com/GPUOpen-LibrariesAndSDKs/VulkanMemoryAllocator
 Revision: 309fa0e613c6db0231df03d0d7ac0c166dbee1d1
 Security Critical: yes
+Shipped: yes
 License: MIT
 License File: LICENSE.txt