IB/rdmavt,hfi1,qib: Fix memory leak

IB/rdmavt,hfi1,qib: Fix memory leak

rdi->ports has memory allocated in rvt_alloc_device(), but does not get
freed because the hfi1 and qib drivers drivers call ib_dealloc_device()
directly instead of going through rdmavt. Add a rvt_dealloc_device()
that frees rdi->ports and then calls ib_dealloc_device(). Switch hfi1
and qib drivers to calling rvt_dealloc_device() instead of
ib_dealloc_device() directly.

Reviewed-by: Dennis Dalessandro <[email protected]>
Reviewed-by: Brian Welty <[email protected]>
Signed-off-by: Jubin John <[email protected]>
Reviewed-by: Leon Romanovsky <[email protected]>
Signed-off-by: Doug Ledford <[email protected]>