DAHDI: Fix case where we have multiple E1 ports/cards (spans)

DAHDI creates one device node for every E1 timeslot, starting from '1',
and keeps incrementing that number even for additional ports/cards.

Thus, we have to use the e1inp_line number multiplied by 31 as a base.
1 file changed
tree: c3b89e4e1cadce0a064958ba3ad2896631d08375
  1. hlrsync/
  2. linux-kernel/
  3. openbsc/
  4. wireshark/
  5. README