thunderbolt: No need to warn if NHI hop_count != 12 or hop_count != 32

While Intel hardware typically has hop_count (Total Paths in the spec)
12 the USB4 spec allows this to be anything between 1 and 21 so no need
to warn about this. Simply log number of paths at debug level.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>