sh: r2dplus: Enable OF control

Enable OF control for SH4 R2Dplus board. This is necessary, because
the PCI uclass is designed in a way that makes it depend on DT and
disallows instanciating devices without DT (e.g. with platdata).

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/arch/sh/include/asm/config.h b/arch/sh/include/asm/config.h
index 406156d..e1cd322 100644
--- a/arch/sh/include/asm/config.h
+++ b/arch/sh/include/asm/config.h
@@ -8,6 +8,8 @@
 
 #include <asm/processor.h>
 
+#define CONFIG_LMB
+
 /* Timer */
 #define CONFIG_SYS_TIMER_COUNTS_DOWN
 #define CONFIG_SYS_TIMER_COUNTER	(TMU_BASE + 0xc)	/* TCNT0 */