mmc: check the revision for sd3.0

Support to check whether the SD3.0 or not.

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Rommel Custodio <sessyargc@gmail.com>
diff --git a/include/mmc.h b/include/mmc.h
index d5b3a9e..f0d4820 100644
--- a/include/mmc.h
+++ b/include/mmc.h
@@ -30,6 +30,7 @@
 #include <linux/compiler.h>
 
 #define SD_VERSION_SD	0x20000
+#define SD_VERSION_3	(SD_VERSION_SD | 0x300)
 #define SD_VERSION_2	(SD_VERSION_SD | 0x200)
 #define SD_VERSION_1_0	(SD_VERSION_SD | 0x100)
 #define SD_VERSION_1_10	(SD_VERSION_SD | 0x10a)