mmc: host: Make UHS timing values fully unique

Both of MMC_TIMING_LEGACY and MMC_TIMING_UHS_SDR12 are defined
to 0. And ios->timing is set to MMC_TIMING_LEGACY during power up.
But set_ios can't distinguish these two timing if host support
spec 3.0. Just adjust timing values to be different can resolve
this issue without any other impact.

Reviewed-by: Girish K S <girish.shivananjappa@linaro.org>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Kevin Liu <kliu5@marvell.com>
Signed-off-by: Chris Ball <cjb@laptop.org>

include/linux/mmc/host.h

@@ -53,12 +53,12 @@ struct mmc_ios {
 #define MMC_TIMING_LEGACY	0
 #define MMC_TIMING_MMC_HS	1
 #define MMC_TIMING_SD_HS	2
-#define MMC_TIMING_UHS_SDR12	MMC_TIMING_LEGACY
-#define MMC_TIMING_UHS_SDR25	MMC_TIMING_SD_HS
-#define MMC_TIMING_UHS_SDR50	3
-#define MMC_TIMING_UHS_SDR104	4
-#define MMC_TIMING_UHS_DDR50	5
-#define MMC_TIMING_MMC_HS200	6
+#define MMC_TIMING_UHS_SDR12	3
+#define MMC_TIMING_UHS_SDR25	4
+#define MMC_TIMING_UHS_SDR50	5
+#define MMC_TIMING_UHS_SDR104	6
+#define MMC_TIMING_UHS_DDR50	7
+#define MMC_TIMING_MMC_HS200	8
 
 #define MMC_SDR_MODE		0
 #define MMC_1_2V_DDR_MODE	1