The channel mapping has been moved to hdspm.c, so it's no longer
available to userspace tools. For now, let's simply copy (duplicate) the
data and wait for a way to query this information from the driver.
Signed-off-by: Adrian Knoth <adi@drcomp.erfurt.thur.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>