hook/install: Add field "private" to sbom-pkg-info.json

To include private packages in SBOM
for private boards, this CL adds field
"private" to sbom-pkg-info.json instead
of directly skipping private packages.

BUG=b/254334533
TEST=presubmit
RELEASE_NOTE=None

Change-Id: I18fa388943b30f955e10648d505e69abc39a9538
Reviewed-on: https://cos-review.googlesource.com/c/third_party/platform/crosutils/+/44439
Reviewed-by: Vaibhav Rustagi <vaibhavrustagi@google.com>
Tested-by: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>
Reviewed-by: Robert Kolchmeyer <rkolchmeyer@google.com>
3 files changed