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/MPC8610HPCD.h b/include/configs/MPC8610HPCD.h
index e7f01d0..f6d45a9 100644
--- a/include/configs/MPC8610HPCD.h
+++ b/include/configs/MPC8610HPCD.h
@@ -449,7 +449,7 @@
 
 #if defined(CONFIG_PCI)
 #define CONFIG_CMD_PCI
-#define CONFIG_CMD_SCSI
+#define CONFIG_SCSI
 #endif
 
 #define CONFIG_WATCHDOG			/* watchdog enabled */