ARM: rockchip: rv1108: Enable BOUNCE_BUFFER

In order to be able to build the Rockchip eMMC driver on rv1108, the
BOUNCE_BUFFER option needs to be selected. Select it like it is done
on the other Rockchip SoC common files.

Reviewed-by: Andy Yan <andy.yan@rock-chips.com>
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
diff --git a/include/configs/rv1108_common.h b/include/configs/rv1108_common.h
index 2ab3b85..cc0384e 100644
--- a/include/configs/rv1108_common.h
+++ b/include/configs/rv1108_common.h
@@ -17,6 +17,9 @@
 #define CONFIG_SYS_TIMER_BASE		0x10350020
 #define CONFIG_SYS_TIMER_COUNTER	(CONFIG_SYS_TIMER_BASE + 8)
 
+/* MMC/SD IP block */
+#define CONFIG_BOUNCE_BUFFER
+
 #define CONFIG_SYS_SDRAM_BASE		0x60000000
 #define CONFIG_SYS_INIT_SP_ADDR		(CONFIG_SYS_TEXT_BASE + 0x100000)
 #define CONFIG_SYS_LOAD_ADDR		(CONFIG_SYS_SDRAM_BASE + 0x2000000)