drivers: renesas: eMMC: Move to common

Move eMMC driver code to common directory, so that the same
code can be re-used by both R-Car Gen3 and RZ/G2 platforms.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Change-Id: I7f3055709337327d1a1c9f563c14ad1626adb355
diff --git a/plat/renesas/common/common.mk b/plat/renesas/common/common.mk
index ab9cded..9b14663 100644
--- a/plat/renesas/common/common.mk
+++ b/plat/renesas/common/common.mk
@@ -79,6 +79,12 @@
 			${LIBFDT_SRCS}					\
 			common/desc_image_load.c			\
 			drivers/renesas/common/common.c			\
+			drivers/renesas/common/emmc/emmc_interrupt.c	\
+			drivers/renesas/common/emmc/emmc_utility.c	\
+			drivers/renesas/common/emmc/emmc_mount.c	\
+			drivers/renesas/common/emmc/emmc_init.c		\
+			drivers/renesas/common/emmc/emmc_read.c		\
+			drivers/renesas/common/emmc/emmc_cmd.c		\
 			drivers/io/io_storage.c
 
 BL31_SOURCES	+=	${RCAR_GIC_SOURCES}				\