rcar_gen3: drivers: ddr: Move DDR drivers out of staging

Now that DDR drivers are mostly cleaned up , move them out of staging.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Change-Id: I9de63f847a0ef9ac27a79fb0f848c351fd7f4da6
diff --git a/plat/renesas/rcar/platform.mk b/plat/renesas/rcar/platform.mk
index dc58e19..4c41dd3 100644
--- a/plat/renesas/rcar/platform.mk
+++ b/plat/renesas/rcar/platform.mk
@@ -348,12 +348,12 @@
 ERRATA_A57_859972  := 1
 ERRATA_A57_813419  := 1
 
-include drivers/staging/renesas/rcar/ddr/ddr.mk
+include drivers/renesas/rcar/ddr/ddr.mk
 include drivers/renesas/rcar/qos/qos.mk
 include drivers/renesas/rcar/pfc/pfc.mk
 include lib/libfdt/libfdt.mk
 
-PLAT_INCLUDES	:=	-Idrivers/staging/renesas/rcar/ddr	\
+PLAT_INCLUDES	:=	-Idrivers/renesas/rcar/ddr		\
 			-Idrivers/renesas/rcar/qos		\
 			-Idrivers/renesas/rcar/iic_dvfs		\
 			-Idrivers/renesas/rcar/board		\