mmc-utils: one ioctl enough for FFU

FFU upgrade is now done with a single ioctl
MMC_FFU_INVOKE_OP

BUG=None
TEST=Upgrade gnawty with latest sandisk patch.

Change-Id: I104234d83b1a231a04ed1f62d60413624cf5f446
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/224152
diff --git a/mmc.h b/mmc.h
index b338e1d..d571986 100644
--- a/mmc.h
+++ b/mmc.h
@@ -80,8 +80,7 @@
  */
 #define BKOPS_ENABLE	(1<<0)
 
-#define MMC_FFU_DOWNLOAD_OP	302
-#define MMC_FFU_INSTALL_OP	303
+#define MMC_FFU_INVOKE_OP	302
 
 /*
  * EXT_CSD field definitions