mmc: dw_mmc: set the card_width bit per card.

This patch sets the card_width bit of CTYPE for the corresponding card.

CTYPE[31] and CTYPE[16] correspond respectively to card[15] and card[0]
for 8-bit mode. And CTYPE[15] and CTYPE[0] correspond respectively to
card[15] and CTYPE[0] for 1-bit or 4-bit mode.
Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Acked-by: Will Newton <will.newton@imgtec.com>
Signed-off-by: Chris Ball <cjb@laptop.org>

drivers/mmc/host/dw_mmc.c

@@ -574,7 +574,7 @@ static void dw_mci_setup_bus(struct dw_mci_slot *slot)
 	}
 
 	/* Set the current slot bus width */
-	mci_writel(host, CTYPE, slot->ctype);
+	mci_writel(host, CTYPE, (slot->ctype << slot->id));
 }
 
 static void dw_mci_start_request(struct dw_mci *host,