drivers: renesas: io: Move to common

Move io 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: Ic661e415c91a1fbfd5eee3bba86466037e51574b
diff --git a/plat/renesas/rcar/platform.mk b/plat/renesas/rcar/platform.mk
index 02be49a..1f0c8ab 100644
--- a/plat/renesas/rcar/platform.mk
+++ b/plat/renesas/rcar/platform.mk
@@ -309,7 +309,7 @@
 			-Idrivers/renesas/rcar/scif		\
 			-Idrivers/renesas/common/emmc		\
 			-Idrivers/renesas/rcar/pwrc		\
-			-Idrivers/renesas/rcar/io
+			-Idrivers/renesas/common/io
 
 BL2_SOURCES	+=	plat/renesas/rcar/aarch64/platform_common.c	\
 			plat/renesas/rcar/aarch64/plat_helpers.S	\
@@ -322,9 +322,6 @@
 			plat/renesas/rcar/bl2_cpg_init.c		\
 			drivers/renesas/rcar/console/rcar_printf.c	\
 			drivers/renesas/rcar/scif/scif.S		\
-			drivers/renesas/rcar/io/io_emmcdrv.c		\
-			drivers/renesas/rcar/io/io_memdrv.c		\
-			drivers/renesas/rcar/io/io_rcar.c		\
 			drivers/renesas/rcar/auth/auth_mod.c		\
 			drivers/renesas/rcar/rpc/rpc_driver.c		\
 			drivers/renesas/rcar/dma/dma_driver.c		\