[sdk] Fix include_base

Fixes include_base for cgptlib/include so that the include dir in
meta.json is consistent with actual include dir

Bug: b/269166466
Change-Id: I5f22a2842a25a201d54a388f4c610fa413688c13
Reviewed-on: https://fuchsia-review.googlesource.com/c/third_party/vboot_reference/+/839378
Reviewed-by: David Pursell <dpursell@google.com>
1 file changed