mx6qarm2: Enable DCACHE and CONFIG_MMC_BOUNCE_BUFFER

Data cache and CONFIG_MMC_BOUNCE_BUFFER can be safely enabled now.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>

include/configs/mx6qarm2.h

@@ -50,6 +50,7 @@
 #define CONFIG_MMC
 #define CONFIG_CMD_MMC
 #define CONFIG_GENERIC_MMC
+#define CONFIG_MMC_BOUNCE_BUFFER
 #define CONFIG_CMD_FAT
 #define CONFIG_DOS_PARTITION
 
@@ -164,6 +165,4 @@
 #define CONFIG_OF_LIBFDT
 #define CONFIG_CMD_BOOTZ
 
-#define CONFIG_SYS_DCACHE_OFF
-
 #endif				/* __CONFIG_H */