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/configs/db-88f6820-gp.h b/include/configs/db-88f6820-gp.h
index d84dde3..3539a62 100644
--- a/include/configs/db-88f6820-gp.h
+++ b/include/configs/db-88f6820-gp.h
@@ -27,7 +27,7 @@
 #define CONFIG_SYS_NO_FLASH		/* Declare no flash (NOR/SPI) */
 #define CONFIG_CMD_ENV
 #define CONFIG_CMD_PCI
-#define CONFIG_CMD_SCSI
+#define CONFIG_SCSI
 
 /* I2C */
 #define CONFIG_SYS_I2C