megaraid_sas : Move controller's queue depth calculation in adapter specific function

Signed-off-by: Kashyap Desai <kashyap.desai@avagotech.com>
Signed-off-by: Sumit Saxena <sumit.saxena@avagotech.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <JBottomley@Odin.com>

diff --cc drivers/scsi/megaraid/megaraid_sas.h
Simple merge

diff --cc drivers/scsi/megaraid/megaraid_sas_base.c
Simple merge

diff --cc drivers/scsi/megaraid/megaraid_sas_fusion.c
Simple merge