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>
diff --git a/include/config_cmd_all.h b/include/config_cmd_all.h
index ed502a1..b5fd6c6 100644
--- a/include/config_cmd_all.h
+++ b/include/config_cmd_all.h
@@ -45,7 +45,7 @@
 #define CONFIG_CMD_READ		/* Read data from partition	*/
 #define CONFIG_CMD_SANDBOX	/* sb command to access sandbox features */
 #define CONFIG_CMD_SAVES	/* save S record dump		*/
-#define CONFIG_CMD_SCSI		/* SCSI Support			*/
+#define CONFIG_SCSI		/* SCSI Support			*/
 #define CONFIG_CMD_SDRAM	/* SDRAM DIMM SPD info printout */
 #define CONFIG_CMD_TERMINAL	/* built-in Serial Terminal	*/
 #define CONFIG_CMD_UBI		/* UBI Support			*/