ionic: move debugfs add/delete to match alloc/free

Move the qcq debugfs add to the queue alloc, and likewise move
the debugfs delete to the queue free.  The LIF debugfs add
also needs to be moved, but the del is already in the LIF free.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>