[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 --git a/drivers/scsi/ch.c b/drivers/scsi/ch.c
index ccbbae2..0920220 100644
--- a/drivers/scsi/ch.c
+++ b/drivers/scsi/ch.c
@@ -75,7 +75,7 @@
 module_param_array(vendor_firsts, int, NULL, 0444);
 module_param_array(vendor_counts, int, NULL, 0444);
 
-static char *vendor_labels[CH_TYPES-4] = {
+static const char * vendor_labels[CH_TYPES-4] = {
 	"v0", "v1", "v2", "v3"
 };
 // module_param_string_array(vendor_labels, NULL, 0444);
@@ -140,7 +140,7 @@
 #endif
 };
 
-static struct {
+static const struct {
 	unsigned char  sense;
 	unsigned char  asc;
 	unsigned char  ascq;