sdio: set host bus width

Need to set the bus width used by the host when enabling wide (4 bit) mode.

Signed-of-by: David Vrabel <david.vrabel@csr.com>
---
Index: mmc/drivers/mmc/core/sdio.c
===================================================================
--- mmc.orig/drivers/mmc/core/sdio.c	2007-08-10 01:15:54.000000000 +0100
+++ mmc/drivers/mmc/core/sdio.c	2007-08-10 01:16:05.000000000 +0100
@@ -159,6 +159,8 @@
 	if (ret)
 		return ret;
 
+	mmc_set_bus_width(card->host, MMC_BUS_WIDTH_4);
+
 	return 0;
 }