[build] Integrate with u-boot-mainline bazel build

Sets up GBL dependencies in u-boot-mainline bazel workspace to support
building GBL targets.

Bug: 304282799

Change-Id: Icae23075bad1a3c751b6183402ff1f792f1e7373
3 files changed
tree: 1215e1a760a88bc5f50a1d9335508daf17499d7a
  1. gbl/
  2. libxbc/
  3. vts/
  4. .gitignore
  5. OWNERS