Install venv patched for target use.

This patch is intended for local development use.
It will allow more makefile targets to use an upgraded python interpreter (3.10+)

  o Change venv activate script dependency for three lingering targets
    from $(venv-activate-script) to $(venv-activate-patched).
  o venv-activate-patched supports local python v3.10+ use.
  o Added target voltha-docs-catchall to support testing.

[HOWTO: Test]
  % make sterile help
  % make sterile multiversion
  % make sterile voltha-docs-catchall

Change-Id: Id5f6c29c73bc11cc511fe83838fc234133d38ebf
2 files changed