Integrate libgbl into bazel build

Add a BUILD file and fixes needed for building libgbl in bazel.

In EFI environment, all memories are managed and allocated by UEFI
loader. We can't hardcode address space for load buffer. The API is
updated to ask the caller to provide the load buffer instead.

Bug: 325312615
Change-Id: I38d3fa35f3df85b3488062ccdf3652e2ae661130
13 files changed
tree: 7ae0bf4f7223ff102a07692b1678e1b64981efd4
  1. gbl/
  2. libxbc/
  3. vts/
  4. .gitignore
  5. BUILD
  6. OWNERS