Open EFI protocol exclusively

Use EXCLUSIVE flag when openning EFI protocols. This prevents multiple
uses of the underlying driver at the same time which can be unsafe.

Change-Id: Icf1f5750416c8961c5eb221f35fccd88124b255c
1 file changed
tree: 726cdf48e15bb0db97a2f874301911feb9a2264a
  1. gbl/
  2. libxbc/
  3. vts/
  4. .clang-format
  5. .gitignore
  6. BUILD
  7. LICENSE
  8. OWNERS