[SCSI] Mark some core scsi data structures const

patch below marks a few scsi core datastructures as const, so that they end up
in the .rodata section and don't cacheline share with things that get dirtied

Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

diff --cc drivers/scsi/ch.c
Simple merge

diff --cc drivers/scsi/constants.c
Simple merge

diff --cc drivers/scsi/raid_class.c
Simple merge

diff --cc drivers/scsi/scsi_scan.c
Simple merge

diff --cc drivers/scsi/scsi_sysfs.c
Simple merge

diff --cc drivers/scsi/scsi_transport_fc.c
Simple merge

diff --cc drivers/scsi/sr.c
Simple merge

diff --cc drivers/scsi/st.c
Simple merge