plat/poplar: migrate to mmc framework

Migrate from emmc framework to mmc framework.

Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
diff --git a/plat/hisilicon/poplar/include/hi3798cv200.h b/plat/hisilicon/poplar/include/hi3798cv200.h
index 125b048..254b357 100644
--- a/plat/hisilicon/poplar/include/hi3798cv200.h
+++ b/plat/hisilicon/poplar/include/hi3798cv200.h
@@ -67,11 +67,11 @@
 
 #define EMMC_DESC_SIZE			U(0x00100000) /* 1MB */
 #define EMMC_INIT_PARAMS(base)				\
-	{	.bus_width = EMMC_BUS_WIDTH_8,		\
+	{	.bus_width = MMC_BUS_WIDTH_8,		\
 		.clk_rate = 25 * 1000 * 1000,		\
 		.desc_base = (base),	\
 		.desc_size = EMMC_DESC_SIZE,		\
-		.flags =  EMMC_FLAG_CMD23,		\
+		.flags =  MMC_FLAG_CMD23,		\
 		.reg_base = REG_BASE_MCI,		\
 	}