ionic: useful names for booleans

With a few more uses of true and false in function calls, we
need to give them some useful names so we can tell from the
calling point what we're doing.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Reviewed-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>