dm: scsi: Rename CONFIG_CMD_SCSI to CONFIG_SCSI

This option currently enables both the command and the SCSI functionality.
Rename the existing option to CONFIG_SCSI since most of the code relates
to the feature.

Signed-off-by: Simon Glass <sjg@chromium.org>

fs/fat/fat.c

@@ -1254,7 +1254,7 @@ int file_fat_detectfs(void)
 
 #if defined(CONFIG_CMD_IDE) || \
     defined(CONFIG_CMD_SATA) || \
-    defined(CONFIG_CMD_SCSI) || \
+    defined(CONFIG_SCSI) || \
     defined(CONFIG_CMD_USB) || \
     defined(CONFIG_MMC)
 	printf("Interface:  ");