ARMV7: OMAP4: Use generic mmc driver on Overo

This patch switches from the legacy mmc driver to the new generic mmc driver

Signed-off-by: Steve Sakoman <steve@sakoman.com>
diff --git a/board/overo/overo.c b/board/overo/overo.c
index 1b67f1f..9c92693 100644
--- a/board/overo/overo.c
+++ b/board/overo/overo.c
@@ -32,6 +32,7 @@
 #include <netdev.h>
 #include <twl4030.h>
 #include <asm/io.h>
+#include <asm/arch/mmc_host_def.h>
 #include <asm/arch/mux.h>
 #include <asm/arch/mem.h>
 #include <asm/arch/sys_proto.h>
@@ -225,3 +226,11 @@
 #endif
 	return rc;
 }
+
+#ifdef CONFIG_GENERIC_MMC
+int board_mmc_init(bd_t *bis)
+{
+	omap_mmc_init(0);
+	return 0;
+}
+#endif