In a future change, we'll want access to this so that it's possible to
retrieve vTPM data during the unrescue operation. While we're here, it
seems nothing is using the 'network_info' argument anymore, presumably
since the demise of nova-network, and this can and should be dropped.
Resolve both issues in one go, adding the 'context' parameter, dropping
the 'network_info' one, and updating the various callers and tests for
same.
Maintainers of out-of-tree drivers have been notified of these changes
[1].
[1] http://lists.openstack.org/pipermail/openstack-discuss/2020-July/015824.html
Part of blueprint add-emulated-virtual-tpm
Change-Id: Id5e4b0f26d5a2a93db6a7d96555a2cff29d9a2cf
Signed-off-by: Stephen Finucane <stephenfin@redhat.com>