ARM: rmobile: Update V2H Blanche

The V2H Blanche port was broken since some time. This patch updates
the V2H Blanche port to use modern frameworks, DM, DT probing, SPL
for the preloading and puts it on par with the M2 Porter board.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/board/renesas/blanche/Makefile b/board/renesas/blanche/Makefile
index bdbfb29..21986af 100644
--- a/board/renesas/blanche/Makefile
+++ b/board/renesas/blanche/Makefile
@@ -6,4 +6,4 @@
 # SPDX-License-Identifier: GPL-2.0
 #
 
-obj-y	:= blanche.o qos.o ../rcar-common/common.o
+obj-y	:= blanche.o qos.o