Currently BFA was not checking for IOC down condition when issuing
getstats/clearstats

Add check to see if IOC is operational, before issuing
getstats/clearstats.
Signed-off-by: NKrishna Gudipati <kgudipat@brocade.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>