IB/hfi1: Reduce printing of errors during driver shut down

The driver prints unnecessary prints for error conditions on shutdown
remove them to quiet it down.

Signed-off-by: Douglas Miller <doug.miller@cornelisnetworks.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Link: https://lore.kernel.org/r/169271327832.1855761.3756156924805531643.stgit@awfm-02.cornelisnetworks.com


Signed-off-by: Leon Romanovsky <leon@kernel.org>