mmc: Fixed a problem with old sd or mmc that do not support High speed

As the legacy modes were not added to the list of supported modes, old
cards that do not support other modes could not be used.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index 9b5c982..c1f8851 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -818,7 +818,7 @@
 	u8 *ext_csd = mmc->ext_csd;
 	char cardtype;
 
-	mmc->card_caps = MMC_MODE_1BIT;
+	mmc->card_caps = MMC_MODE_1BIT | MMC_CAP(MMC_LEGACY);
 
 	if (mmc_host_is_spi(mmc))
 		return 0;
@@ -1171,7 +1171,7 @@
 	int timeout;
 	u32 sd3_bus_mode;
 
-	mmc->card_caps = MMC_MODE_1BIT;
+	mmc->card_caps = MMC_MODE_1BIT | MMC_CAP(SD_LEGACY);
 
 	if (mmc_host_is_spi(mmc))
 		return 0;