Blackfin: convert bfin_sdh to generic mmc

Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
diff --git a/include/configs/bf548-ezkit.h b/include/configs/bf548-ezkit.h
index 297c3fd..f9c9711 100644
--- a/include/configs/bf548-ezkit.h
+++ b/include/configs/bf548-ezkit.h
@@ -161,6 +161,7 @@
  * SDH Settings
  */
 #if !defined(__ADSPBF544__)
+#define CONFIG_GENERIC_MMC
 #define CONFIG_MMC
 #define CONFIG_BFIN_SDH
 #endif